Mobility and ecological risk assessment of heavy metals in surface sediments of xiamen bay and its adjacent areas, china
文献类型：期刊论文
| 作者 | Yan, Changzhou1; Li, Qingzhao1,2,3; Zhang, Xian1; Li, Guoxin1,3 |
| 刊名 | Environmental earth sciences
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 60期号:7页码:1469-1479 |
| 关键词 | Xiamen bay Surface sediment Heavy metals Risk assessment code (rac) Mean effects range median quotients (mermq) Yuandang lagoon |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-009-0282-3 |
| 通讯作者 | Yan, changzhou(czyan@iue.ac.cn) |
| 英文摘要 | Xiamen bay (xmb) has received substantial loadings of pollutants from industrial and municipal wastewater discharged since the 1980s. to assess ecological risks and the current spatial changes of metal contaminants in bottom surface sediments, 12 samples were collected. samples were subjected to a total digestion technique and analyzed by icp-oes for cu, pb, zn, cr, and cd, and by afs for hg and as. among these metals, zn had the highest values (68-268 mg kg(-1)), followed by pb (27-71 mg kg(-1)), and lower concentrations were found for cd (42-1,913 mu g kg(-1)) and hg (0-442 mu g kg(-1)). in comparison with the average crustal abundance values, the results indicated that nearly half of the sediment samples of xmb and its adjacent areas were contaminated by cd, pb, zn, and as. furthermore, based on the modified bcr sequential extraction procedure, the chemical speciation of heavy metals (cd, cr, cu, pb, zn, hg, and as) in selected sediment samples were evaluated in this study. data from bcr sequential extractions indicated that cd posed a medium ecological risk, whereas, cr posed low risk since its exchangeable and carbonate fractions were below 4%, and the mobility of heavy metals in xmb decreased in the order cd > pb > cu > zn > hg > as > cr. by applying mean effects range median quotients (mermq), the results showed that yuandang lagoon with mermq value >0.5 would be expected to have the greatest potential toxic risk in amphipod within xmb and its adjacent areas. |
| WOS关键词 | SEQUENTIAL EXTRACTION PROCEDURE ; QUALITY GUIDELINES ; MARINE-SEDIMENTS ; TRACE-ELEMENTS ; ESTUARINE SEDIMENTS ; NW SPAIN ; SPECIATION ; HARBOR ; FRACTIONATION ; POLLUTION |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000277956000013 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2413557 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yan, Changzhou |
| 作者单位 | 1.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China 2.Zhengzhou Inst Aeronaut Ind Management, Zhengzhou 450015, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Changzhou,Li, Qingzhao,Zhang, Xian,et al. Mobility and ecological risk assessment of heavy metals in surface sediments of xiamen bay and its adjacent areas, china[J]. Environmental earth sciences,2010,60(7):1469-1479. |
| APA | Yan, Changzhou,Li, Qingzhao,Zhang, Xian,&Li, Guoxin.(2010).Mobility and ecological risk assessment of heavy metals in surface sediments of xiamen bay and its adjacent areas, china.Environmental earth sciences,60(7),1469-1479. |
| MLA | Yan, Changzhou,et al."Mobility and ecological risk assessment of heavy metals in surface sediments of xiamen bay and its adjacent areas, china".Environmental earth sciences 60.7(2010):1469-1479. |
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来源：中国科学院大学
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