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BOOKLET to Provide Basic Information Regarding Health Effects of Radiation (2nd edition)

Inspections by Water Suppliers

Inspections by Water Suppliers_Figure

Water suppliers conduct inspections of radioactive cesium for approx. 6,000 to 7,000 specimens of purified water and over 100 specimens of raw water per month. The maximum monthly value of radioactive cesium concentration was 140.5 Bq/kg detected in March 2011, but the value declined gradually thereafter and there has been no report of radioactive cesium detection at a level exceeding 10 Bq/kg since June 2011.

  • Included in this reference material on March 31, 2013
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