| Phytoremediation for co-contaminated soils of benzo[a]pyrene (B[a]P) and heavy metals using ornamental plant Tagetes patula. | |
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MedLine Citation:
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PMID: 21269763 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Pot-culture experiments were conducted to investigate the single effect of benzo[a]pyrene (B[a]P) and the joint effect of metal-B[a]P on the growth of Tagetes patula and its uptake, accumulation and dissipation of heavy metals and B[a]P. Results showed that the low concentration of B[a]P (≤10mgkg(-1)) could facilitate plant growth and resulted in an increase in biomass at the rate of 10.0-49.7% relative to the control. There were significantly positive correlations between the concentrations of B[a]P accumulated in tissues of the plants and soil B[a]P (P<0.001). However, the occurrence of Cd, Cu and Pb had inhibitive effects on plant growth and B[a]P uptake and accumulation on the whole. T. patula still exhibited a steady feature of Cd-hyperaccumulator under combined contaminated soils. By contrast, the effectiveness of Cu and Pb absorption in the plants was very weak. Plant-promoted biodegradation of B[a]P was the dominant contribution, 79.2-92.4% and 78.2-92.9% of dissipation of B[a]P came from plant-biodegradation under single B[a]P and metal-B[a]P contaminated soils, respectively. Therefore, T. patula might be useful for phytoremediation of B[a]P and B[a]P-Cd contaminated sites. |
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Authors:
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Yuebing Sun; Qixing Zhou; Yingming Xu; Lin Wang; Xuefeng Liang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-1-5 |
Journal Detail:
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Title: Journal of hazardous materials Volume: - ISSN: 1873-3336 ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-1-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier B.V. All rights reserved. |
Affiliation:
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Key Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Production Environment and Agro-product Safety, Ministry of Agriculture, Tianjin Key Laboratory of Agro-environment and Agro-product Safety, Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, China; Graduate School of the Chinese Academy of Sciences, Beijing 100039, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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