New air concentration data for Livermore

I found the following official measurements for I131 for Livermore and other CA areas. Could someone please convert picocuries in becquerel for me?
Thank you.

Great link

Very much appreciate the post!

Here is the link to epa

Here is the link to epa chernobyl radiation numbers in US as comparison
Notice how it only took a month to start clearing up after May

http://www.epa.gov/radiation/rert/chernobyl.html#plume