Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/2575
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Bi, X | - |
dc.creator | Feng, X | - |
dc.creator | Yang, Y | - |
dc.creator | Li, X | - |
dc.creator | Shin, GPY | - |
dc.creator | Qiu, G | - |
dc.creator | Qian, X | - |
dc.creator | Li, F | - |
dc.creator | He, T | - |
dc.creator | Li, P | - |
dc.creator | Liu, T | - |
dc.creator | Fu, Z | - |
dc.date.accessioned | 2014-12-11T08:23:35Z | - |
dc.date.available | 2014-12-11T08:23:35Z | - |
dc.identifier.issn | 0048-9697 | - |
dc.identifier.uri | http://hdl.handle.net/10397/2575 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Science of the Total Environment © 2007 Elsevier. The journal web site is located at http://www.sciencedirect.com. | en_US |
dc.subject | Heavy metals | en_US |
dc.subject | Sediments | en_US |
dc.subject | Pb isotopes | en_US |
dc.subject | Aquatic plant | en_US |
dc.subject | Zinc smelting | en_US |
dc.subject | Caohai wetland | en_US |
dc.subject | China | en_US |
dc.title | Heavy metals in an impacted wetland system : a typical case from southwestern China | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.description.otherinformation | Author name used in this publication: Grace P.Y. Sin | en_US |
dc.identifier.spage | 257 | - |
dc.identifier.epage | 268 | - |
dc.identifier.volume | 387 | - |
dc.identifier.issue | 1-3 | - |
dc.identifier.doi | 10.1016/j.scitotenv.2007.07.059 | - |
dcterms.abstract | Historical zinc smelting in Hezhang, southwestern China, has resulted in significant heavy metal contamination of the surrounding ecosystems. The Caohai wetland system, which is an important national nature reserve close to the Hezhang zinc smelting area, was investigated in the present study. Results showed that sediments from the Caohai wetland system have been seriously contaminated by Cd, Pb and Zn with the highest concentrations in the surface sediments being up to 71, 160 and 1200 μg g⁻¹, respectively. The heavy metals in the sediments were strongly associated with the organic/sulphide and residual fractions. A more oxidized condition induced by aquatic plants tended to cause the Cd, Pb and Zn bound to the Fe–Mn oxide fraction to become more dominant. Pb isotopic compositions in the sediments indicated that the inventories of Pb in the Caohai wetland sediments were mainly derived from the historical zinc smelting in the Hezhang area, although other anthropogenic sources, such as the gasoline Pb, also made a substantial contribution to the Pb in the sediments. Heavy metal contamination in aquatic plants was also studied and the results indicated that heavy metals accumulated by plants may pose a potential threat to the higher trophic-level organisms, including humans. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Science of the total environment, 15 Nov. 2007, v. 387, no. 1-3, p. 257–268 | - |
dcterms.isPartOf | Science of the total environment | - |
dcterms.issued | 2007-11-15 | - |
dc.identifier.isi | WOS:000250420200024 | - |
dc.identifier.scopus | 2-s2.0-36649026699 | - |
dc.identifier.pmid | 17822743 | - |
dc.identifier.eissn | 1879-1026 | - |
dc.identifier.rosgroupid | r35237 | - |
dc.description.ros | 2007-2008 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
B42 Caohai wetland STOTEN 2007.pdf | Pre-published version | 292.01 kB | Adobe PDF | View/Open |
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