当前位置： SCI文献检索 > JOURNAL OF ENVIRONMENTAL RADIOACTIVITY期刊下所有文献 > Monitoring rainwater and seaweed reveals the presence of (131)I in southwest and central British Columbia, Canada following the Fukushima nuclear accident in Japan.

Monitoring rainwater and seaweed reveals the presence of (131)I in southwest and central British Columbia, Canada following the Fukushima nuclear accident in Japan.

Abstract：

:Detailed analysis of (131)I levels in rainwater and in three species of seaweed (Fucus distichus Linnaeus, Macrocystis pyrifera, and Pyropia fallax) collected in southwest British Columbia and Bella Bella, B.C., Canada was performed using gamma-ray spectroscopy following the Fukushima nuclear power plant accident on March 11, 2011. Maximum (131)I activity was found to be 5.8(7) Bq/L in rainwater collected at the campus of Simon Fraser University in Burnaby, B.C. nine days after the accident. Concomitantly, maximum observed activity in the brown seaweed F. distichus Linnaeus was observed to be 130(7) Bq/kg dry weight in samples collected in North Vancouver 11 days following the accident and 67(6) Bq/kg dry weight in samples collected from the Bamfield Marine Sciences Centre on Vancouver Island 17 days following the accident. The (131)I activity in seaweed samples collected in southwest B.C. following the Fukushima accident was an order of magnitude less than what was observed following Chernobyl. Iodine-131 activity in F. distichus Linnaeus remained detectable for 60 days following the accident and was detectable in each seaweed species collected. The Germanium Detector for Elemental Analysis and Radioactivity Studies (GEARS) was modeled using the Geant4 software package and developed as an analytical tool by the Nuclear Science group in the Simon Fraser University Department of Chemistry for the purpose of these measurements.

journal_name

J Environ Radioact

journal_title

Journal of environmental radioactivity

authors

Chester A,Starosta K,Andreoiu C,Ashley R,Barton A,Brodovitch JC,Brown M,Domingo T,Janusson C,Kucera H,Myrtle K,Riddell D,Scheel K,Salomon A,Voss P

doi

10.1016/j.jenvrad.2013.05.013

subject

Has Abstract

pub_date

2013-10-01 00:00:00

pages

205-13

eissn

0265-931X

issn

1879-1700

pii

S0265-931X(13)00139-2

journal_volume

124

pub_type

杂志文章

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