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Data on radiation levels of tap water

Products which have shipping restrictions imposed by the government are not in market circulation

Year/Month/Day Region Municipality Name of water supplier Sample location Amount of radiation (becquerel​/kg) Measuring organization Notes
Radioactive iodine Radioactive cesium
134 137 134+137
Measured values Standard value(other ages/Infants under 1 year old) Measured values Measured values Measured values Standard value(other ages)
2025-04-16 Kesennuma,Mtoyoshi Area Kesennuma City Kesennuma City water supply Tateyama Water Purification Plant (raw water) - 300/100 Not detectable(0.69Below) Not detectable(0.93Below) Not detectable(1.62Below) 10 日鉄環境(株) 基準を満たしています。
2025-04-15 Kesennuma,Mtoyoshi Area Kesennuma City Kesennuma City water supply Osawa Water Purification Plant - 300/100 Not detectable(0.92Below) Not detectable(0.77Below) Not detectable(1.69Below) 10 日鉄環境(株) 基準を満たしています。
2025-04-15 Kesennuma,Mtoyoshi Area Kesennuma City Kesennuma City water supply Izumisawa Water Purification Plant - 300/100 Not detectable(0.71Below) Not detectable(0.94Below) Not detectable(1.65Below) 10 日鉄環境(株) 基準を満たしています。
2025-04-15 Kesennuma,Mtoyoshi Area Kesennuma City Kesennuma City water supply Yatsuse Water Purification Plant - 300/100 Not detectable(0.84Below) Not detectable(0.91Below) Not detectable(1.75Below) 10 日鉄環境(株) 基準を満たしています。
2025-04-15 Kesennuma,Mtoyoshi Area Kesennuma City Kesennuma City water supply Nijyuuichi Water Purification Plant - 300/100 Not detectable(0.65Below) Not detectable(0.94Below) Not detectable(1.59Below) 10 日鉄環境(株) 基準を満たしています。

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