The total amount of radioactive cesium increased slightly since the last test, and has risen steadily since the minimum detectable amount was lowered in August.
Bay Area store-bought milk sample with best buy date of October 10, 2011
- Cs-134 @ 0.056 Becquerel per kilogram (Bq/kg)
- Cs-137 @ 0.088 Bq/kg
The sample has 3.888 pCi/l of radioactive cesium, compared with the EPA’s Maximum Contaminant Level of 3.0 pCi/l.
“EPA lumps these gamma and beta emitters together under one collective MCL [Maximum Contaminant Level], so if you’re seeing cesium-137 in your milk or water, the MCL is 3.0 picocuries per liter; if you’re seeing iodine-131, the MCL is 3.0; if you’re seeing cesium-137 and iodine-131, the MCL is still 3.0.” -Forbes.com