Levels of radioactive materials in tap water and fall out
(Measured by the Tokyo Metropolitan Institute of Public Health)

Graph of radioactive material levels in tap water (From March 2011)

We analyze drinking water taken everyday from a tap directiy connected to the water supply system in the facility of the Tokyo Metropolitan Institute of Public Health every day, using a germanium semiconductor detector that measures types of radioactive nuclides.

Graph of radioactive material levels in fallout (From March 2011)

We collect dust and rain everyday and analyze them everyday, using a germanium semiconductor detector that measures types of radioactive nuclides.

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