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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)
2021-09-09 Sendai Area Iwanuma City Iwanuma City water supply Tamasaki Water Purification Plant - 300/100 Not detectable(0.5Below) Not detectable(0.4Below) Not detectable(0.9Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Ishinomaki City Ishinomaki regional wide-area water supply Ayukawa Water Purification Plant - 300/100 Not detectable(0.6Below) Not detectable(0.7Below) Not detectable(1.3Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Higashimatsushima City Ishinomaki regional wide-area water supply Ayukawa Water Purification Plant - 300/100 Not detectable(0.6Below) Not detectable(0.7Below) Not detectable(1.3Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Ishinomaki City Ishinomaki regional wide-area water supply Ajishima Water Purification Plant - 300/100 Not detectable(0.5Below) Not detectable(0.5Below) Not detectable(1Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Higashimatsushima City Ishinomaki regional wide-area water supply Ajishima Water Purification Plant - 300/100 Not detectable(0.5Below) Not detectable(0.5Below) Not detectable(1Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Ishinomaki City Ishinomaki regional wide-area water supply Kugunarihama Water Purification Plant - 300/100 Not detectable(0.5Below) Not detectable(0.7Below) Not detectable(1.2Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Higashimatsushima City Ishinomaki regional wide-area water supply Kugunarihama Water Purification Plant - 300/100 Not detectable(0.5Below) Not detectable(0.7Below) Not detectable(1.2Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Ishinomaki City Ishinomaki regional wide-area water supply Niiyama Water Purification Plant(Ishinomaki City) - 300/100 Not detectable(0.5Below) Not detectable(0.7Below) Not detectable(1.2Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Higashimatsushima City Ishinomaki regional wide-area water supply Niiyama Water Purification Plant(Ishinomaki City) - 300/100 Not detectable(0.5Below) Not detectable(0.7Below) Not detectable(1.2Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。
2021-09-05 Ishinomaki Area Ishinomaki City Ishinomaki regional wide-area water supply Tomari Water Purification Plant - 300/100 Not detectable(0.6Below) Not detectable(0.6Below) Not detectable(1.2Below) 10 (一財)宮城県公衆衛生協会 基準を満たしています。

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