Abstract：
:Most models for transfers of radionuclides through the food chain typically assume that the radioactivity is initially deposited in chemically available forms. It is known, however, that releases of radionuclides in the form of hot particles may significantly influence their environmental transfers and uptake to the food chain. This study presents models for time changes in (90)Sr and (137)Cs in milk which incorporate hot particle contamination using observed rates of hot particle dissolution following the Chernobyl accident. A general equation is presented for the influence of hot particles on overall ingestion doses. As expected from previous work, fallout of hot particles significantly influences time changes in radionuclide activity concentrations in foodstuffs. It is also shown that incorporation of radionuclides in hot particles influences time-integrated ingestion doses. For a situation in which a large proportion (90-100%) of fallout is in slowly dissolving hot particles, time-integrated ingestion doses from (90)Sr and (137)Cs are reduced by a factor of approximately two compared to the case where all radioactivity is deposited in bioavailable forms. However, the influence of rapidly dissolving hot particles on time-integrated ingestion doses is relatively minor. Remaining significant uncertainties in dose estimates are discussed.
journal_name
J Environ Radioactjournal_title
Journal of environmental radioactivityauthors
Smith JTdoi
10.1016/j.jenvrad.2008.12.011subject
Has Abstractpub_date
2009-04-01 00:00:00pages
322-8issue
4eissn
0265-931Xissn
1879-1700pii
S0265-931X(08)00229-4journal_volume
100pub_type
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2018.05.008
更新日期：2018-10-01 00:00:00
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journal_title：Journal of environmental radioactivity
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doi：10.1016/j.jenvrad.2016.09.012
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2018.07.017
更新日期：2018-12-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2012.08.012
更新日期：2013-02-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2017.11.018
更新日期：2018-02-01 00:00:00
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journal_title：Journal of environmental radioactivity
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doi：10.1016/j.jenvrad.2014.07.020
更新日期：2014-11-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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journal_title：Journal of environmental radioactivity
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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更新日期：2020-09-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/s0265-931x(00)00207-1
更新日期：2001-01-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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journal_title：Journal of environmental radioactivity
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abstract：:Radon-222 is a radioactive natural gas produced by the decay of radium-226, known to be the main contributor to natural background radiation exposure. Effective risk management needs to determine the areas in which the density of buildings with high radon levels is likely to be highest. Predicting radon exposure from ...
journal_title：Journal of environmental radioactivity
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doi：10.1016/j.jenvrad.2013.08.006
更新日期：2013-12-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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更新日期：2003-01-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
doi：10.1016/j.jenvrad.2008.01.005
更新日期：2008-09-01 00:00:00
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journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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更新日期：2016-01-01 00:00:00
abstract：:Soil gas 222Rn and 220Rn concentrations were measured at 18 locations in the Karkonosze-Izera Block area in southwestern Poland. Measurements were carried out in surface air and at sampling depths of 10, 40 and 80 cm. Surface air 222Rn concentrations ranged from 4 to 2160 Bq m(-3) and 220Rn ranged from 4 to 228 Bq m(-...
journal_title：Journal of environmental radioactivity
pub_type： 杂志文章
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更新日期：2007-01-01 00:00:00
