Radiological Situation in Shirakawa-shi
The background radiation in Shirakawa-shi as of is within its usual limits and is 0.052-0.127 µSv/h (the lowest and highest values for the last 24 hours). Values are measured by various devices, from online monitoring stations to daily manual measurements by relevant government agencies at stationary observation posts.
The highest value of the power of the exposure dose (background radiation) for the last day was recorded at 06:10 at the observation post by address Maitaunshirakawa and it is 0.127 µSv/h, which is below the control level.
JMA AMeDAS: Shirakawa (0.7 km)
Why Is Verification Necessary?
Map readings are indicative data from their respective providers. If a value appears unusual, check whether the change persists and consult the provider.
For emergency decisions, rely on official information from the relevant authorities.
Data Sources
Radiation dose rate: Safecast Radnote. Wind direction and speed: Open-Meteo.
Map backgrounds: OpenStreetMap, JMA Himawari, and NASA GIBS.
Fukushima restricted zone: the web geometry is a high-resolution vector derived from the official Fukushima Prefecture evacuation-zone concept map (31 March 2025) and georeferenced through the JGD2011 ArcGIS evacuation-zone raster; narrow map-rendering seams between adjacent sections were closed and detached non-zone artifacts removed while mapped release exclusions were preserved; the latest status is checked against the METI evacuation-zone concept map (1 April 2026).
The total number of monitoring posts in Shirakawa-shi – 66 posts.
As of October 14, 2026, 06:33
Long-term radiation trend in Shirakawa-shi, Fukushima Prefecture
Monthly average radiation levels
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Every station has equal weight. A cohort mean is shown only when every listed station has a valid value with the same method. You can also select an individual station. Groups with different units or measurement profiles are never mixed.
Solid lines: official NRA monthly means, with daily outliers removed by the source. Other segments: monthly means with equal weight per valid day. These methods remain separate. Our monthly rollups require at least 75% of intervals in each valid day and 80% of days per month.
Missing or incompatible months remain gaps, without interpolation. Available history differs by station.
Updated weekly
Sources: NRA / RAMDAS; RAMIS; Safecast.