Fate of carbon tetrachloride during phytoremediation with poplar under controlled field conditions.
Identifieur interne : 004270 ( Main/Exploration ); précédent : 004269; suivant : 004271Fate of carbon tetrachloride during phytoremediation with poplar under controlled field conditions.
Auteurs : Xiaoping Wang [États-Unis] ; Michael P. Dossett ; Milton P. Gordon ; Stuart E. StrandSource :
- Environmental science & technology [ 0013-936X ] ; 2004.
Descripteurs français
- KwdFr :
- Chloroforme (analyse), Chlorures (analyse), Diffusion (MeSH), Facteurs temps (MeSH), Polluants chimiques de l'eau (métabolisme), Populus (composition chimique), Populus (croissance et développement), Populus (métabolisme), Racines de plante (effets des médicaments et des substances chimiques), Racines de plante (métabolisme), Sol (MeSH), Tétrachloro-méthane (métabolisme), Tétrachloro-méthane (toxicité).
- MESH :
- analyse : Chloroforme, Chlorures.
- composition chimique : Populus.
- croissance et développement : Populus.
- effets des médicaments et des substances chimiques : Racines de plante.
- métabolisme : Polluants chimiques de l'eau, Populus, Racines de plante, Tétrachloro-méthane.
- toxicité : Tétrachloro-méthane.
- Diffusion, Facteurs temps, Sol.
English descriptors
- KwdEn :
- Carbon Tetrachloride (metabolism), Carbon Tetrachloride (toxicity), Chlorides (analysis), Chloroform (analysis), Diffusion (MeSH), Plant Roots (drug effects), Plant Roots (metabolism), Populus (chemistry), Populus (growth & development), Populus (metabolism), Soil (MeSH), Time Factors (MeSH), Water Pollutants, Chemical (metabolism).
- MESH :
- chemical , analysis : Chlorides, Chloroform.
- chemical , metabolism : Carbon Tetrachloride, Water Pollutants, Chemical.
- chemical , toxicity : Carbon Tetrachloride.
- chemistry : Populus.
- drug effects : Plant Roots.
- growth & development : Populus.
- metabolism : Plant Roots, Populus.
- Diffusion, Soil, Time Factors.
Abstract
The fate of carbon tetrachloride (CT) during phytoremediation with poplar was assessed by examining the transpiration of CT from leaves, diffusion from soil, tree trunks, and surface roots, and accumulation of chloride ion in soil and plant tissues. Feedwater containing 12-15 mg/L CT was added to the field test beds planted with poplar, and over 99% of the CT was removed. No significant amount of CT was transpired or diffused into the air, and no significant amount of CT-chlorine accumulated in the tree tissues. Chloride ion accumulated in the soil accounted for all of the CT-chlorine removed. When soils from the root zones were compared to unvegetated soils, microbial mineralization of CT was not enhanced in soils from the root zones as compared to unvegetated soils. Thus, we conclude that uptake and dechlorination of CT by plant tissues is likely the primary mechanism for phytoremediation by poplar.
DOI: 10.1021/es0499187
PubMed: 15575295
Affiliations:
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Feedwater containing 12-15 mg/L CT was added to the field test beds planted with poplar, and over 99% of the CT was removed. No significant amount of CT was transpired or diffused into the air, and no significant amount of CT-chlorine accumulated in the tree tissues. Chloride ion accumulated in the soil accounted for all of the CT-chlorine removed. When soils from the root zones were compared to unvegetated soils, microbial mineralization of CT was not enhanced in soils from the root zones as compared to unvegetated soils. Thus, we conclude that uptake and dechlorination of CT by plant tissues is likely the primary mechanism for phytoremediation by poplar.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15575295</PMID><DateCompleted><Year>2005</Year><Month>03</Month><Day>07</Day></DateCompleted><DateRevised><Year>2019</Year><Month>07</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0013-936X</ISSN><JournalIssue CitedMedium="Print"><Volume>38</Volume><Issue>21</Issue><PubDate><Year>2004</Year><Month>Nov</Month><Day>01</Day></PubDate></JournalIssue><Title>Environmental science & technology</Title><ISOAbbreviation>Environ Sci Technol</ISOAbbreviation></Journal><ArticleTitle>Fate of carbon tetrachloride during phytoremediation with poplar under controlled field conditions.</ArticleTitle><Pagination><MedlinePgn>5744-9</MedlinePgn></Pagination><Abstract><AbstractText>The fate of carbon tetrachloride (CT) during phytoremediation with poplar was assessed by examining the transpiration of CT from leaves, diffusion from soil, tree trunks, and surface roots, and accumulation of chloride ion in soil and plant tissues. Feedwater containing 12-15 mg/L CT was added to the field test beds planted with poplar, and over 99% of the CT was removed. No significant amount of CT was transpired or diffused into the air, and no significant amount of CT-chlorine accumulated in the tree tissues. Chloride ion accumulated in the soil accounted for all of the CT-chlorine removed. When soils from the root zones were compared to unvegetated soils, microbial mineralization of CT was not enhanced in soils from the root zones as compared to unvegetated soils. 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Dossett</name><name sortKey="Gordon, Milton P" sort="Gordon, Milton P" uniqKey="Gordon M" first="Milton P" last="Gordon">Milton P. Gordon</name><name sortKey="Strand, Stuart E" sort="Strand, Stuart E" uniqKey="Strand S" first="Stuart E" last="Strand">Stuart E. Strand</name></noCountry><country name="États-Unis"><region name="Washington (État)"><name sortKey="Wang, Xiaoping" sort="Wang, Xiaoping" uniqKey="Wang X" first="Xiaoping" last="Wang">Xiaoping Wang</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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