UCB Rain Water Sampling Results, University of California, Berkeley, Department of Nuclear Engineering:
Iodine-131 level in rainwater sample taken on the roof of Etcheverry Hall on UC Berkeley campus, March 23, 2011 from 9:06-18:00 PDT
20.1 Becquerel per liter (Bq/L) = 543 Picocuries per liter (pCi/L) — Conversion calculator here.
The federal drinking water standard for Iodine-131 is 3 pCi/L. (Press Release)
Agency for Toxic Substances and Disease Registry for Iodine, CDC, April 2004:
EPA has set an average annual drinking water limit of 3 pCi/L for Iodine-131 so the public radiation dose will not exceed 4 millirem
UCB Rain Water Sampling Results here.
Published: March 31st, 2011 at 6:33 pm ET
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- EPA: Radioactive Iodine-131 levels in PA & MA rainwater “exceed maximum contaminant level permitted in drinking water” March 29, 2011
- Nuclear policy expert: “Striking” that radioactive iodine-131 in California rainwater is so far above level permitted in drinking water April 2, 2011
- NY Times contributor confirms California rainwater 181 times above drinking water standards for radioactive iodine-131 April 2, 2011
- Vancouver, Canada radiation tests show iodine-131 in rainwater at almost 100 times above US drinking water limit April 8, 2011