[Source: PLoS ONE, full text: (LINK). Abstract, edited.]
Observations of Fallout from the Fukushima Reactor Accident in San Francisco Bay Area Rainwater



Eric B. Norman<SUP>*</SUP>, Christopher T. Angell, Perry A. Chodash - Department of Nuclear Engineering, University of California, Berkeley, California, United States of America


Abstract

We have observed fallout from the recent Fukushima Dai-ichi reactor accident in samples of rainwater collected in the San Francisco Bay area. Gamma ray spectra measured from these samples show clear evidence of fission products – <SUP>131,132</SUP>I, <SUP>132</SUP>Te, and <SUP>134,137</SUP>Cs. The activity levels we have measured for these isotopes are very low and pose no health risk to the public.


Citation: Norman EB, Angell CT, Chodash PA (2011) Observations of Fallout from the Fukushima Reactor Accident in San Francisco Bay Area Rainwater. PLoS ONE 6(9): e24330. doi:10.1371/journal.pone.0024330

Editor: Juan A. Añel, Universidade de Vigo, Spain

Received: April 19, 2011; Accepted: August 4, 2011; Published: September 21, 2011

Copyright: © 2011 Norman et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Funding: This work was supported by the United States Department of Homeland Security (www.dhs.gov), and by the United States Department of Energy (www.doe.gov). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Competing interests: The authors have declared that no competing interests exist.
* E-mail: ebnorman@lbl.gov
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