Pennsylvania - Iodine 131 in Rain Water

Not really surprising but worth noting. It took me a while to find a site that bothered to list numbers.

[link to www.centredaily.com]

"The numbers reported in the rainwater samples in Pennsylvania range from 40-100 picocuries per liter (pCi/L). Although these are levels above the background levels historically reported in these areas, they are still about 25 times below the level that would be of concern. The federal drinking water standard for Iodine-131 is three pCi/L."