Observations of Fallout from the Fukushima Reactor Accident in San Francisco Bay Area Rainwater
2011
Fallout from the Fukushima Reactor Accident in San Francisco Rainwater
publication
Evidence: high
Author Information
Author(s): Norman Eric B., Angell Christopher T., Chodash Perry A.
Primary Institution: University of California, Berkeley
Hypothesis
Is there radioactive fallout from the Fukushima reactor accident in rainwater samples collected in the San Francisco Bay area?
Conclusion
The levels of fallout observed in San Francisco Bay area rainwater pose no health risk to the public.
Supporting Evidence
- Gamma ray spectra showed clear evidence of fission products.
- The maximum concentration of 131I observed was 16 Bq L−1.
- The levels of fallout pose no health risk to the public.
Takeaway
Scientists checked rainwater in San Francisco after the Fukushima accident and found tiny amounts of radioactive materials, but they are too low to be harmful.
Methodology
Rainwater samples were collected and analyzed for gamma-ray spectra to detect radioactive isotopes.
Digital Object Identifier (DOI)
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