Title: Kaltofen’s soil measurement 100X UCB’s? – 296 becquerel/kg?
Source: UC Berkeley Department of Nuclear Engineering Forum
Date: April 5, 2012
Submitted 2012-04-05 19:51 PT
My group measured soil, air filter and dust samples from Washington, Oregon, California, and British Columbia. This particular soil sample, with 8 pCi/g of radiocesium, was our highest North American result. It came from a site on the outskirts of Portland, OR. The next highest result came from a site near Boulder, CO. Except for followup samples near these two sites, no other US or Canadian samples came close to the levels of radiocesium in these “hot spots.” Given the nature of radioactive fallout, this is an expected result. Both hot spots are likely due to rainouts that took place during March or April 2011. A recent study by the USGS, “Fission Products in National Atmospheric Deposition Program—Wet Deposition Samples Prior to and Following the Fukushima Dai-Ichi Nuclear Power Plant Incident, March 8–April 5, 2011″, found remarkably similar results. The USGS study was more detailed, (and more with a much bigger budget), and found evidence of rainouts at Portland and Boulder. When you collect a lot of samples, some are bound to be much higher than the average.
This comment appears consistent with Kaltofen’s communication style and past statements
Read the report here
- Radiation precautions for areas near Seattle, Vancouver, Portland? "Perhaps you need to wash your shoes"... and other things (VIDEO)
- Gundersen: If in Oregon, Wash., Calif. you need to demand officials test how Fukushima fallout has affected rivers and fish -- Significant radiation hit west coast and settled in on Cascades (VIDEO)
- Expert on US, Canada: We'll see a statistically meaningful increase in cancer from Fukushima on west coast -- After Japan, the most radioactive area is Cascade Mountains -- Portland had cesium at 100 Bq/m² (VIDEO)
- University Researcher: Portland-area topsoil with up to 8,000 pCi/kg of cesium from Fukushima -- Over 10,000% higher than highest levels found by UC Berkeley
Published: April 6th, 2012 at 12:47 pm ET