Air and milk update from CDPH

New air sampling update for California and one milk sample from the California Department of Public Health:

www.cdph.ca.gov/programs/Documents/CDPH-RHB-RadReport-2011-04-12.pdf

Interesting...

CDPH indicates they're testing for pretty much everything but strontium, and coming up empty on all but I-131.

Rick Cromack.
Allen, Texas
RichardFCromackJr@gmail.com

Looking at the CDPH report

Looking at the CDPH report and lab analysis, I see air sample detection results for Barium-140, Cerium-141, Cerium-144, Cesium-134, Cesium-137, Iodine-131, Iodine-132, Ruthenium-103, Ruthenium-106, Tellurium-132, and Zirconium-95.

FWIW, my own cheat sheet which is still a work in progress:

Radionuclide Half-life Release? Detected in US?
______________ __________________ __________ _________________
Chlorine-38 37 minutes Confirmed Unknown
Iodine-132 2.3 hours Confirmed Unknown
Technitium-99m 6 hours Confirmed Unknown
Iodine-133 21 hours Confirmed Unknown
Lanthanum-140 1.7 days Confirmed Unknown
Molybdenum-99 2.8 days Confirmed Unknown
Tellurium-132 3.2 days Confirmed Reported
Xenon-133 5.2 days Confirmed Reported
Iodine-131 8 days Confirmed Reported
Barium-140 12.8 days Confirmed Unknown
Cesium-136 13 days Confirmed Reported
Arsenic-74 17.8 days Confirmed Unknown
Tellurium-129m 34 days Confirmed Unknown
Nobium-95 35 days Confirmed Unknown
Strontium-89 50.5 days Confirmed Unknown
Yttrium-91 58.5 days Confirmed Unknown
Zirconium-95 64 days Confirmed Unknown
Silver-110m 250 days Confirmed Unknown
Cerium-144 285 days Confirmed Unknown
Ruthenium-106 1 year Confirmed Unknown
Cesium-134 2 years Confirmed Reported
Strontium-90 28.9 years Confirmed Unknown
Cesium-137 30 years Confirmed Reported
Plutonium-238 87.7 years Confirmed Unknown
Plutonium-240 6.5 thousand years Confirmed Unknown
Plutonium-239 24.1 thousand years Confirmed Unknown
Uranium-234 245 thousand Probable Reported
Uranium-235 700 million years Probable Unknown
Uranium-238 4.47 billion years Probable Unknown

I think an important question is what SHOULD be tested for. Arguably, any and every radionuclide that can be present should be tested for. However, I don't know how practical that is. To simply leave one or several unaddressed (either through testing or at least some kind of logical argument that they can't be present in a concentration that would result in an immediate OR cumulative threat over time) doesn't seem very appropriate especially if one is making representations regarding risks (they all contribute).

IOW, I question whether the CDPH testing and reporting is adequate.

I believe that one of the

I believe that one of the EPA air tests detected U-238, so you can add that to your list.