Fukushima: Levels of radioactive iodine and cesium in tap water

The Japanese Ministry of Education, Culture, Sport, Science and Technology (MEXT), which has published charts we already referenced here (they are now available from our map) of the levels of radiation measured in all prefectures, also published charts of the levels of radioactive iodine 131 and cesium 137 measured in tap water.

Those charts are gathered on this page (link to the source is available).

Fukushima: Measured amount of iodine and cesium in atmosphere in Setagaya ku, Tokyo | 東京都世田谷区内で計測された大気中のヨウ素及びセシウム素

The following page reports on a day to day basis levels of iodine 131, iodine 132, cesium 134 and cesium 137 as measured in the atmosphere in Setagaya ku, in Tokyo. The documents are in Japanese, but spreadsheets should be understandable.

http://www.sangyo-rodo.metro.tokyo.jp/whats-new/measurement.html


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