BRAWM Team: EPA Plutonium-239 Detection On 3/18

Before everyone panics, PLEASE read the info immediately below FIRST:

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***BEFORE Fukushima, there have been LOTS of very low level air
detections of plutonium by the EPA across the US***

In the EPA western region alone, the EPA has reported:

194 detections of Pu-239 since 1978. 65 since 1990. 12 since 2000. With
the last detection from the sample ending on 12/31/2008.

183 detections of Pu-238 since 1978. 74 since 1990. 28 since 2002. With
the last detection also from the sample ending on 12/31/2008.

For *all* EPA regions, the EPA has reported over 3700 plutonium detections
since 1978. 1169 since 1990. And 277 since 2000.

So, what I'm talking about below isn't necessarily a huge event.

You can perform your own queries at the following link:
http://www.epa.gov/enviro/facts/radnet/customized.html

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Now, that being said, I would like the BRAWM teams thoughts.

It appears that the EPA reported the detection of Pu-239 in their
3/15-3/18 air sample.

They reported 0.0000065 pCi/M^3 (2.40741E-10 Bq/L) in San Francisco.
This is above their CSU of 0.0000058 pCi/M3. So, it should be considered
an actual detection.

Please give us your thoughts on this detection and the amount.

And we are eagerly awaiting the BRAWM plutonium results.