WillowV1, Main, Corpus, bibRecord, 002018

Ecological half-life of 137Cs in plants associated with a contaminated stream.

Identifieur interne : 002018 ( Main/Corpus ); précédent : 002017; suivant : 002019

Ecological half-life of 137Cs in plants associated with a contaminated stream.

Auteurs : John D. Peles ; Michael H. Smith ; I Lehr Brisbin

Source :

Journal of environmental radioactivity [ 0265-931X ] ; 2002.

RBID : pubmed:11900204

English descriptors

KwdEn :
- Cesium Radioisotopes (pharmacokinetics), Ecosystem (MeSH), Environmental Monitoring (MeSH), Half-Life (MeSH), Plants (MeSH), Tissue Distribution (MeSH), Water Pollutants, Radioactive (pharmacokinetics).
MESH :
- chemical , pharmacokinetics : Cesium Radioisotopes, Water Pollutants, Radioactive.
- Ecosystem, Environmental Monitoring, Half-Life, Plants, Tissue Distribution.

Abstract

Ecological half-life (Te) is a useful measure for studying the long-term decline of contaminants, such as radionuclides, in natural systems. The current investigation determined levels of radiocesium (137Cs) in two aquatic (Polygonum punctatum, Sagittaria latifolia) and three terrestrial (Alnus serrulata, Myrica cerifera, Salix nigra) plant species from a contaminated stream and floodplain on the U.S. Department of Energy's Savannah River Site. Current 137Cs levels in plants were used in conjunction with historical data to determine Te of 137Cs in each species. Median concentrations of 137Cs were highest in S. latifolia (0.84 Bq g(-1)) and lowest in M. cerifera (0.10 Bq g(-1)). Te's ranged from 4.85 yr in M. cerifera to 8.35 yr in S. nigra, both terrestrial species. Te's for all aquatic (6.30 yr) and all terrestrial (5.87) species combined were very similar. The Te's of the two aquatic primary producers (P. punctatum and S. latifolia) in the Steel Creek ecosystem were somewhat longer than Te values previously reported for some consumers from this ecosystem.

DOI: 10.1016/s0265-931x(01)00069-8
PubMed: 11900204

Links to Exploration step

pubmed:11900204

Le document en format XML

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<author><name sortKey="Peles, John D" sort="Peles, John D" uniqKey="Peles J" first="John D" last="Peles">John D. Peles</name>
<affiliation><nlm:affiliation>207 Ostermayer Laboratory, Pennsylvania State University-McKeesport, 15132, USA. jdp12@psu.edu</nlm:affiliation>
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<author><name sortKey="Smith, Michael H" sort="Smith, Michael H" uniqKey="Smith M" first="Michael H" last="Smith">Michael H. Smith</name>
</author>
<author><name sortKey="Brisbin, I Lehr" sort="Brisbin, I Lehr" uniqKey="Brisbin I" first="I Lehr" last="Brisbin">I Lehr Brisbin</name>
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<author><name sortKey="Smith, Michael H" sort="Smith, Michael H" uniqKey="Smith M" first="Michael H" last="Smith">Michael H. Smith</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cesium Radioisotopes (pharmacokinetics)</term>
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<term>Half-Life (MeSH)</term>
<term>Plants (MeSH)</term>
<term>Tissue Distribution (MeSH)</term>
<term>Water Pollutants, Radioactive (pharmacokinetics)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacokinetics" xml:lang="en"><term>Cesium Radioisotopes</term>
<term>Water Pollutants, Radioactive</term>
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<keywords scheme="MESH" xml:lang="en"><term>Ecosystem</term>
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<front><div type="abstract" xml:lang="en">Ecological half-life (Te) is a useful measure for studying the long-term decline of contaminants, such as radionuclides, in natural systems. The current investigation determined levels of radiocesium (137Cs) in two aquatic (Polygonum punctatum, Sagittaria latifolia) and three terrestrial (Alnus serrulata, Myrica cerifera, Salix nigra) plant species from a contaminated stream and floodplain on the U.S. Department of Energy's Savannah River Site. Current 137Cs levels in plants were used in conjunction with historical data to determine Te of 137Cs in each species. Median concentrations of 137Cs were highest in S. latifolia (0.84 Bq g(-1)) and lowest in M. cerifera (0.10 Bq g(-1)). Te's ranged from 4.85 yr in M. cerifera to 8.35 yr in S. nigra, both terrestrial species. Te's for all aquatic (6.30 yr) and all terrestrial (5.87) species combined were very similar. The Te's of the two aquatic primary producers (P. punctatum and S. latifolia) in the Steel Creek ecosystem were somewhat longer than Te values previously reported for some consumers from this ecosystem.</div>
</front>
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<DateCompleted><Year>2002</Year>
<Month>09</Month>
<Day>06</Day>
</DateCompleted>
<DateRevised><Year>2019</Year>
<Month>11</Month>
<Day>05</Day>
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<Article PubModel="Print"><Journal><ISSN IssnType="Print">0265-931X</ISSN>
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<Issue>2</Issue>
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<Title>Journal of environmental radioactivity</Title>
<ISOAbbreviation>J Environ Radioact</ISOAbbreviation>
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<ArticleTitle>Ecological half-life of 137Cs in plants associated with a contaminated stream.</ArticleTitle>
<Pagination><MedlinePgn>169-78</MedlinePgn>
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<Abstract><AbstractText>Ecological half-life (Te) is a useful measure for studying the long-term decline of contaminants, such as radionuclides, in natural systems. The current investigation determined levels of radiocesium (137Cs) in two aquatic (Polygonum punctatum, Sagittaria latifolia) and three terrestrial (Alnus serrulata, Myrica cerifera, Salix nigra) plant species from a contaminated stream and floodplain on the U.S. Department of Energy's Savannah River Site. Current 137Cs levels in plants were used in conjunction with historical data to determine Te of 137Cs in each species. Median concentrations of 137Cs were highest in S. latifolia (0.84 Bq g(-1)) and lowest in M. cerifera (0.10 Bq g(-1)). Te's ranged from 4.85 yr in M. cerifera to 8.35 yr in S. nigra, both terrestrial species. Te's for all aquatic (6.30 yr) and all terrestrial (5.87) species combined were very similar. The Te's of the two aquatic primary producers (P. punctatum and S. latifolia) in the Steel Creek ecosystem were somewhat longer than Te values previously reported for some consumers from this ecosystem.</AbstractText>
</Abstract>
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<Author ValidYN="Y"><LastName>Brisbin</LastName>
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<MeshHeading><DescriptorName UI="D006207" MajorTopicYN="N">Half-Life</DescriptorName>
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<MeshHeading><DescriptorName UI="D010944" MajorTopicYN="Y">Plants</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014018" MajorTopicYN="N">Tissue Distribution</DescriptorName>
</MeshHeading>
<MeshHeading><DescriptorName UI="D014875" MajorTopicYN="N">Water Pollutants, Radioactive</DescriptorName>
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Ecological half-life of 137Cs in plants associated with a contaminated stream.

Ecological half-life of 137Cs in plants associated with a contaminated stream.

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki