Japanese / Chinese

Information on radiation monitoring of accidents at the Fukushima I Nuclear Power Plant (2011)

Location: Tohoku University (Sendai City, Aoba-ku, Aobayama Area)
Normal Level (BG): approx. 0.04 microsieverts/hr. (Reference data: Natural background radiation dose par hours from the ground in the world)
* Measurements indicate airborne dosage rates.
Inquiries: Tohoku University Environment & Safety Office (022-217-6017)


December 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on December 22 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.09 No health risk
Kakuda (Uramachi): 0.23 No health risk
Marumori (Marumori Town Hall): 0.17 No health risk


December 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 16, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 16, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on December 15 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.10 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.17 No health risk


December 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on December 8 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.08 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.17 No health risk


December 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


December 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


December 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on December 1 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.11 No health risk
Kakuda (Uramachi): 0.23 No health risk
Marumori (Marumori Town Hall): 0.21 No health risk


December 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 27, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 26, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on November 24 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.13 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.19 No health risk


November 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 23, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 20, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 19, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 18, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 18, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 17, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on November 17 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.10 No health risk
Watari (Kamimachi): 0.15 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.10 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.21 No health risk


November 17, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 16, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 16, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 13, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 12, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 10, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on November 10 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.20 No health risk


November 10, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 6, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 5, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


November 4, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on November 4 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.11 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


November 4, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 3, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


November 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 31, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 31, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 30, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 29, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on October 27 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.09 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.20 No health risk


October 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 23, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 22, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on October 20 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.11 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.20 No health risk


October 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 18, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 18, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 17, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 17, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 16, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 15, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on October 13 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.12 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.19 No health risk


October 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 10, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 9, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 8, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on October 6 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.11 No health risk
Kakuda (Uramachi): 0.29 No health risk
Marumori (Marumori Town Hall): 0.19 No health risk


October 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 4, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 4, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


October 3, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 3, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 2, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


October 1, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on September 29 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.17 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.11 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


September 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 25, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 24, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 23, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on September 22 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.17 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.18 No health risk
Kakuda (Uramachi): 0.23 No health risk
Marumori (Marumori Town Hall): 0.21 No health risk


September 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


September 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 19, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 18, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 17, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 16, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 16, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on September 15 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.12 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.25 No health risk


September 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 11, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 10, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on September 8 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.17 No health risk
Kakuda (Uramachi): 0.22 No health risk
Marumori (Marumori Town Hall): 0.21 No health risk


September 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 4, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 3, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


September 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


September 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on September 1 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.19 No health risk
Kakuda (Uramachi): 0.26 No health risk
Marumori (Marumori Town Hall): 0.19 No health risk


September 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 31, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 31, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 28, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 27, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on August 25 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.19 No health risk
Kakuda (Uramachi): 0.24 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


August 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 23, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 23, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 21, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 20, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 18, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on August 18 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.13 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.22 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


August 18, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 17, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 17, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on August 11 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.18 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.26 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


August 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 10, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 10, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 7, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 6, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 4, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 4, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 3, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on August 3 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.10 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.15 No health risk
Kakuda (Uramachi): 0.27 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


August 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


August 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


August 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 31, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 30, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on July 28 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.11 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.20 No health risk


July 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 24, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 23, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on July 22 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.15 No health risk
Watari (Kamimachi): 0.20 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.26 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.24 No health risk


July 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 18, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 17, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 16, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on July 14 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.08 No health risk
Iwanuma (Nagaoka): 0.13 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.26 No health risk
Marumori (Marumori Town Hall): 0.26 No health risk


July 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 10, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 9, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on July 7 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.15 No health risk
Watari (Kamimachi): 0.16 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.15 No health risk
Kakuda (Uramachi): 0.27 No health risk
Marumori (Marumori Town Hall): 0.19 No health risk


July 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


July 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 4, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 4, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 3, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on July 3 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.07 No health risk
Iwanuma (Nagaoka): 0.12 No health risk
Watari (Kamimachi): 0.19 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.15 No health risk
Kakuda (Uramachi): 0.22 No health risk
Marumori (Marumori Town Hall): 0.18 No health risk


July 2, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


July 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 26, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 25, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 23, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on June 23 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.13 No health risk
Watari (Kamimachi): 0.20 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.18 No health risk
Kakuda (Uramachi): 0.25 No health risk
Marumori (Marumori Town Hall): 0.27 No health risk


June 23, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


June 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 19, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 18, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


June 17, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 17, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 16, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on June 16 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.22 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.19 No health risk
Kakuda (Uramachi): 0.28 No health risk
Marumori (Marumori Town Hall): 0.25 No health risk


June 16, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 12, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


June 11, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 10, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 10, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx.)
Measurements taken on June 9 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.22 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.29 No health risk
Marumori (Marumori Town Hall): 0.22 No health risk


June 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


June 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 5, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 4, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


June 3, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 3, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on June 2 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.23 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.22 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.22 No health risk


June 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


June 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 31, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 31, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 30 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.13 No health risk
Watari (Kamimachi): 0.21 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.22 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.22 No health risk


May 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 29, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 28, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 26 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.16 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.26 No health risk
Kakuda (Uramachi): 0.33 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


May 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.07 microsieverts/hr.
Comments: No health risk.


May 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 23, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 23 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.15 No health risk
Watari (Kamimachi): 0.28 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.26 No health risk
Kakuda (Uramachi): 0.32 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 23, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 22, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 21, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 19 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.15 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.21 No health risk
Kakuda (Uramachi): 0.31 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 18, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 18, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 17, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 17, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 16, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 16 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.24 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 16, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 15, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 14, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 12 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.24 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 10, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 10, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 9, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 9 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.10 No health risk
Iwanuma (Nagaoka): 0.15 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 9, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 8, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 7, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 6 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.14 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.20 No health risk
Kakuda (Uramachi): 0.34 No health risk
Marumori (Marumori Town Hall): 0.23 No health risk


May 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 5, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


May 4, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 3, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 2, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


May 2, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on May 2 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.13 No health risk
Iwanuma (Nagaoka): 0.21 No health risk
Watari (Kamimachi): 0.27 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.25 No health risk
Kakuda (Uramachi): 0.30 No health risk
Marumori (Marumori Town Hall): 0.26 No health risk


May 1, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 30, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 29, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 28 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.11 No health risk
Iwanuma (Nagaoka): 0.19 No health risk
Watari (Kamimachi): 0.26 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.35 No health risk
Marumori (Marumori Town Hall): 0.25 No health risk


April 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 27, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 27, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 26, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 26, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


April 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 25 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.09 No health risk
Iwanuma (Nagaoka): 0.17 No health risk
Watari (Kamimachi): 0.27 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.36 No health risk
Marumori (Marumori Town Hall): 0.27 No health risk


April 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 24, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 23, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 22, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 22, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


April 21, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 21 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.11 No health risk
Iwanuma (Nagaoka): 0.19 No health risk
Watari (Kamimachi): 0.29 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.23 No health risk
Kakuda (Uramachi): 0.36 No health risk
Marumori (Marumori Town Hall): 0.25 No health risk


April 21, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


April 20, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


April 20, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 19, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 19, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 18, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 18 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.11 No health risk
Iwanuma (Nagaoka): 0.19 No health risk
Watari (Kamimachi): 0.30 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.26 No health risk
Kakuda (Uramachi): 0.36 No health risk
Marumori (Marumori Town Hall): 0.29 No health risk


April 18, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 17, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 16, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 15, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 15, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.08 microsieverts/hr.
Comments: No health risk.


April 14, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 14 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.11 No health risk
Iwanuma (Nagaoka): 0.20 No health risk
Watari (Kamimachi): 0.32 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.26 No health risk
Kakuda (Uramachi): 0.40 No health risk
Marumori (Marumori Town Hall): 0.30 No health risk


April 14, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 13, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 13, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 12, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 12, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 11, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 11 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.11 No health risk
Iwanuma (Nagaoka): 0.21 No health risk
Watari (Kamimachi): 0.33 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.30 No health risk
Kakuda (Uramachi): 0.41 No health risk
Marumori (Marumori Town Hall): 0.31 No health risk


April 11, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 10, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 9, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.09* microsieverts/hr.
Comments: No health risk.


April 8, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 8, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 7, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 7 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.14 No health risk
Iwanuma (Nagaoka): 0.23 No health risk
Watari (Kamimachi): 0.38 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.31 No health risk
Kakuda (Uramachi): 0.43 No health risk
Marumori (Marumori Town Hall): 0.32 No health risk


April 7, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 6, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 6, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 5, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.09 microsieverts/hr.
Comments: No health risk.


April 5, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 4, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on April 4 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.14 No health risk
Iwanuma (Nagaoka): 0.25 No health risk
Watari (Kamimachi): 0.38 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.33 No health risk
Kakuda (Uramachi): 0.48 No health risk
Marumori (Marumori Town Hall): 0.34 No health risk


April 4, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 3, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 2, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


April 1, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.11 microsieverts/hr.
Comments: No health risk.


April 1, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


March 31, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on March 31 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.15 No health risk
Iwanuma (Nagaoka): 0.34 No health risk
Watari (Kamimachi): 0.47 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.43 No health risk
Kakuda (Uramachi): 0.57 No health risk
Marumori (Marumori Town Hall): 0.39 No health risk


March 31, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.10 microsieverts/hr.
Comments: No health risk.


March 30, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.11 microsieverts/hr.
Comments: No health risk.


March 30, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.11 microsieverts/hr.
Comments: No health risk.


March 29, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.11 microsieverts/hr.
Comments: No health risk.


March 29, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.11 microsieverts/hr.
Comments: No health risk.


March 28, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.12 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on March 28 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.18 No health risk
Iwanuma (Nagaoka): 0.33 No health risk
Watari (Kamimachi): 0.50 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.42 No health risk
Kakuda (Uramachi): 0.64 No health risk
Marumori (Marumori Town Hall): 0.44 No health risk


March 28, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.12 microsieverts/hr.
Comments: No health risk.


March 27, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 26, 13:00 (Time of measurement: 12:00)

Recorded Level: 0.12 microsieverts/hr.
Comments: No health risk.


March 25, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 25, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 24, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.16 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on March 24 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.24 No health risk
Iwanuma (Nagaoka): 0.47 No health risk
Watari (Kamimachi): 0.69 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.63 No health risk
Kakuda (Uramachi) : 0.80 No health risk
Marumori (Marumori Town Hall) : 0.58 No health risk


March 24, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.12 microsieverts/hr.
Comments: No health risk.


March 23, 17:00 (Time of measurement: 16:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 23, 11:00 (Time of measurement: 10:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 22, 17:00 Announcement (Time of measurement: 16:00)

Recorded Level: 0.15 microsieverts/hr.
Comments: No health risk.


March 22, 11:00 Announcement (Time of measurement: 10:00)

Recorded Level: 0.15 microsieverts/hr.
Comments: No health risk.


March 21, 13:00 Announcement (Time of measurement: 12:00)

Recorded Level: 0.16 microsieverts/hr.
Comments: No health risk.

Additional Information (Updated approx. once every 3 days)
Measurements taken on March 21 for other areas are as follows (in microsieverts/hr.)
Natori (Jusanzuga): 0.32 No health risk
Iwanuma (Nagaoka): 0.60 No health risk
Watari (Kamimachi): 0.91 No health risk
Yamamoto (1.5km west of Sakamoto Station, Line No. 6): 0.85 No health risk
Kakuda (Oda): 1.42 No health risk
Marumori (Marumori Station): 1.48 No health risk


March 20, 13:00 Announcement (Time of measurement: 12:00)

Recorded Level: 0.15 microsieverts/hr.
Comments: No health risk.


March 19, 13:00 Announcement (Time of measurement: 12:00)

Recorded Level: 0.13 microsieverts/hr.
Comments: No health risk.


March 18, 17:00 Announcement (Time of measurement: 16:00)

Recorded Level: 0.17 microsieverts/hr.
Comments: No health risk.


March 18, 11:00 Announcement (Time of measurement: 10:00)

Recorded Level: 0.15 microsieverts/hr.
Comments: No health risk.