Fission products in National Atmospheric Deposition Program&amp;mdash;Wet deposition samples prior to and following the Fukushima Dai-Ichi Nuclear Power Plant incident, March 8?April 5, 2011

Wetherbee, Gregory A.; DeBey, T.M.; Nilles, Mark A.; Lehmann, Christopher

doi:10.3133/ofr20111277

Cited by 4 publications

(4 citation statements)

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“…Gamma spectrometry analysis was accomplished using Canberra Industries “Genie 2000” ISO 11929 compliant software. Analytical details are given in the Supporting Information and by Wetherbee et al…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Gamma spectrometry analysis was accomplished using Canberra Industries "Genie 2000" ISO 11929 compliant software. Analytical details are given in the Supporting Information and by Wetherbee et al 27 Weekly filter samples were analyzed in their original Petri dish containers. Filters were also composited by stacking them on the detector by site or grouping them by region in plastic bags.…”

Section: Environmental Science and Technologymentioning

confidence: 99%

“…USGS manually reanalyzed the gamma spectra and quantified 134 Cs peak areas for 23 additional samples/sites. Procedures for manual 134 Cs reanalysis are described in the Supporting Information and by Wetherbee et al 27 Quality Assurance. In addition to environmental samples, four blank filter samples and acidified deionized water samples were analyzed, all with no fission products detected.…”

Section: Environmental Science and Technologymentioning

confidence: 99%

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Wet Deposition of Fission-Product Isotopes to North America from the Fukushima Dai-ichi Incident, March 2011

Wetherbee

DeBey

Lehmann

et al. 2012

Environ. Sci. Technol.

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Using the infrastructure of the National Atmospheric Deposition Program (NADP), numerous measurements of radionuclide wet deposition over North America were made for 167 NADP sites before and after the Fukushima Dai-ichi Nuclear Power Station incident of March 12, 2011. For the period from March 8 through April 5, 2011, wet-only precipitation samples were collected by NADP and analyzed for fission-product isotopes within whole-water and filterable solid samples by the United States Geological Survey using gamma spectrometry. Variable amounts of (131)I, (134)Cs, or (137)Cs were measured at approximately 21% of sampled NADP sites distributed widely across the contiguous United States and Alaska. Calculated 1- to 2-week individual radionuclide deposition fluxes ranged from 0.47 to 5100 Becquerels per square meter during the sampling period. Wet deposition activity was small compared to measured activity already present in U.S. soil. NADP networks responded to this complex disaster, and provided scientifically valid measurements that are comparable and complementary to other networks in North America and Europe.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Environmental Science and Technologymentioning

confidence: 99%

Section: Environmental Science and Technologymentioning

confidence: 99%

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