| Multivariate analysis of heavy metal contamination in urban dusts of xi'an, central china | |
| Han, YM; Du, PX; Cao, JJ; Posmentier, ES | |
| 刊名 | Science of the total environment
 |
| 2006-02-15 | |
| 卷号 | 355期号:1-3页码:176-186 |
| 关键词 | Heavy metals Principal component analysis Cluster analysis Enrichment factor Xi'an |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2005.02.026 |
| 通讯作者 | Han, ym(yongming@ieecas.cn) |
| 英文摘要 | Though there are many studies of heavy metal contaminations of urban dusts in developed countries, little attention has been paid to this kind of study in developing countries, including china. therefore, a series of investigations were performed to provide heavy metal signatures of urban dusts and to evaluate potential sources in xi'an, shaanxi province. sixty-five samples of urban dusts were collected in xi'an. then ag, cr, cu, mn, pb and zn concentrations were determined by using atomic absorption spectrophotometry, and as, hg and sb concentrations by atomic fluorescence spectroscopy. the results indicate that, in comparison with chinese soil, urban dusts in xi'an have elevated metal concentrations as a whole, except those of arsenic and manganese. these concentration levels are comparable to those in other studies. correlation coefficient analysis, principal component analysis (pca) and cluster analysis (ca) were performed and three main sources with corresponding cluster elements were identified: (1) ag and hg have commercial and domestic sources; (2) cr, cu, pb, sb and zn are mainly derived from industrial sources, combined with traffic sources as well for pb and zn; (3) as and mn come mainly from soil sources, and as also has an industrial source. based on pca and ca analyses, manganese was selected as the reference element, and heavy metal enrichment factors (efs) were calculated, which in turn further confirms the source identification. also, efs give an insight of human influence degree of urban dusts. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | STREET DUST ; TRACE-ELEMENTS ; ENRICHMENT FACTORS ; SURFACE SEDIMENTS ; RESIDENTIAL AREA ; LEAD ; SAMPLES ; GEOCHEMISTRY ; SPECTROMETRY ; INDUSTRIAL |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000235508500017 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2378973 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Han, YM |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 2.Changan Univ, Dept Earth Sci & Land Resources, Xian 710054, Peoples R China 3.Dartmouth Coll, Dept Earth Sci, Hanover, NH 03755 USA 4.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, YM,Du, PX,Cao, JJ,et al. Multivariate analysis of heavy metal contamination in urban dusts of xi'an, central china[J]. Science of the total environment,2006,355(1-3):176-186. |
| APA | Han, YM,Du, PX,Cao, JJ,&Posmentier, ES.(2006).Multivariate analysis of heavy metal contamination in urban dusts of xi'an, central china.Science of the total environment,355(1-3),176-186. |
| MLA | Han, YM,et al."Multivariate analysis of heavy metal contamination in urban dusts of xi'an, central china".Science of the total environment 355.1-3(2006):176-186. |
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