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[Fractionation and bioavailability of heavy metal contamination of urban surface dusts in Shanghai City].
Huan Jing Ke Xue. 2008 Dec; 29(12):3489-95.HJ

Abstract

This paper presents data on size fractionation and bioavailability of heavy metal characteristics of urban surface dusts in Shanghai City. Result shows that medium size of surface dust is 132 microm, < 75 microm fraction has the highest volume percentage. Particle size distribution has the important influence on pollutant concentrations. With particle size decreasing, the heavy metal concentration increase, and the < 75 microm fraction contains the highest levels of all of the heavy metals, and the order refers to Cr > Pb > Cd > Zn > Ni > Cu. A five-step sequential extraction of roadside sediments showed that Zn is predominantly in the carbonate fraction; Pb is highest in the Fe/Mn oxide fraction; Cu and Cd are mainly distributed in the organic fraction; Cr and Ni are predominantly associated with residual fraction. Considering the proportion of metals bound to the exchangeable and carbonate fractions, the comparative mobility of metals probably decreases in the order of Zn > Pb > Ni > Cd > Cu > Cr. Comparing with literature data abroad, the labile fraction of heavy metal bioavailability in Shanghai is higher for Zn, Pb and Ni, lower for Cu and Cd, and the same level for Cr.

Authors+Show Affiliations

Chang J
Research Center of Remote Sensing and Spatial Information Science, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China. cj1221@yahoo.cn
Liu M
No affiliation info available
Li XH
No affiliation info available
Lin X
No affiliation info available
Wang LL
No affiliation info available
Gao L
No affiliation info available

MeSH

Biological AvailabilityChinaDustEnvironmental MonitoringMetals, HeavyParticle SizeParticulate MatterSoil PollutantsUrban Health

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

chi

PubMed ID

19256390

Citation

Chang, Jing, et al. "[Fractionation and Bioavailability of Heavy Metal Contamination of Urban Surface Dusts in Shanghai City]." Huan Jing Ke Xue= Huanjing Kexue, vol. 29, no. 12, 2008, pp. 3489-95.
Chang J, Liu M, Li XH, et al. [Fractionation and bioavailability of heavy metal contamination of urban surface dusts in Shanghai City]. Huan Jing Ke Xue. 2008;29(12):3489-95.
Chang, J., Liu, M., Li, X. H., Lin, X., Wang, L. L., & Gao, L. (2008). [Fractionation and bioavailability of heavy metal contamination of urban surface dusts in Shanghai City]. Huan Jing Ke Xue= Huanjing Kexue, 29(12), 3489-95.
Chang J, et al. [Fractionation and Bioavailability of Heavy Metal Contamination of Urban Surface Dusts in Shanghai City]. Huan Jing Ke Xue. 2008;29(12):3489-95. PubMed PMID: 19256390.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Fractionation and bioavailability of heavy metal contamination of urban surface dusts in Shanghai City]. AU - Chang,Jing, AU - Liu,Min, AU - Li,Xian-hua, AU - Lin,Xiao, AU - Wang,Li-li, AU - Gao,Lei, PY - 2009/3/5/entrez PY - 2009/3/5/pubmed PY - 2009/10/29/medline SP - 3489 EP - 95 JF - Huan jing ke xue= Huanjing kexue JO - Huan Jing Ke Xue VL - 29 IS - 12 N2 - This paper presents data on size fractionation and bioavailability of heavy metal characteristics of urban surface dusts in Shanghai City. Result shows that medium size of surface dust is 132 microm, < 75 microm fraction has the highest volume percentage. Particle size distribution has the important influence on pollutant concentrations. With particle size decreasing, the heavy metal concentration increase, and the < 75 microm fraction contains the highest levels of all of the heavy metals, and the order refers to Cr > Pb > Cd > Zn > Ni > Cu. A five-step sequential extraction of roadside sediments showed that Zn is predominantly in the carbonate fraction; Pb is highest in the Fe/Mn oxide fraction; Cu and Cd are mainly distributed in the organic fraction; Cr and Ni are predominantly associated with residual fraction. Considering the proportion of metals bound to the exchangeable and carbonate fractions, the comparative mobility of metals probably decreases in the order of Zn > Pb > Ni > Cd > Cu > Cr. Comparing with literature data abroad, the labile fraction of heavy metal bioavailability in Shanghai is higher for Zn, Pb and Ni, lower for Cu and Cd, and the same level for Cr. SN - 0250-3301 UR - https://www.unboundmedicine.com/medline/citation/19256390/[Fractionation_and_bioavailability_of_heavy_metal_contamination_of_urban_surface_dusts_in_Shanghai_City]_ L2 - https://antibodies.cancer.gov/detail/CPTC-CTLA4-1 DB - PRIME DP - Unbound Medicine ER -