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Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China.
Environ Monit Assess. 2015 Sep; 187(9):556.EM

Abstract

Surface soil samples from 467 sample sites were collected in urban area of Wuhan City in 2013, and total concentrations of five trace metals (Pb, Zn, Cu, Cr, and Cd) were measured. Multivariate and geostatistical analyses showed that concentrations of Pb, Zn, and Cu are higher along Yangtze River in the northern area of Wuhan, gradually decrease from city center to suburbs, and are mainly controlled by anthropogenic activities, while those of Cr and Cd are relatively spatially homogenous and mainly controlled by soil parent materials. Pb, Zn, Cu, and Cd have generally higher concentrations in roadsides, industrial areas, and residential areas than in school areas, greenbelts, and agricultural areas. Areas with higher road and population densities and longer urban construction history usually have higher trace metal concentrations. According to estimated results of the potential ecological risk index and Nemero synthesis pollution index, almost the whole urban area of Wuhan is facing considerable potential ecological risk caused by soil trace metals. These results reveal obvious trends of trace metal pollution, and an important impact of anthropogenic activities on the accumulation of trace metals in soil in Wuhan. Vehicular emission, industrial activities, and household wastes may be the three main sources for trace metal accumulation. Increasing vegetation cover may reduce this threat. It should be pointed out that Cd, which is strongly accumulated in soil, could be the largest soil pollution factor in Wuhan. Effective measures should be taken as soon as possible to deal with Cd enrichment, and other trace metals in soil should also be reduced, so as to protect human health in this important large city.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Zhang C
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
Yang Y
No affiliation info available
Li W
No affiliation info available
Zhang C
No affiliation info available
Zhang R
No affiliation info available
Mei Y
No affiliation info available
Liao X
No affiliation info available
Liu Y
No affiliation info available

MeSH

AgricultureChinaCitiesEcologyEnvironmental MonitoringEnvironmental PollutionGeographyHumansIndustryMetals, HeavyModels, StatisticalRegression AnalysisRisk AssessmentRiversSoilSoil PollutantsTrace Elements

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26251059

Citation

Zhang, Chutian, et al. "Spatial Distribution and Ecological Risk Assessment of Trace Metals in Urban Soils in Wuhan, Central China." Environmental Monitoring and Assessment, vol. 187, no. 9, 2015, p. 556.
Zhang C, Yang Y, Li W, et al. Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China. Environ Monit Assess. 2015;187(9):556.
Zhang, C., Yang, Y., Li, W., Zhang, C., Zhang, R., Mei, Y., Liao, X., & Liu, Y. (2015). Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China. Environmental Monitoring and Assessment, 187(9), 556. https://doi.org/10.1007/s10661-015-4762-5
Zhang C, et al. Spatial Distribution and Ecological Risk Assessment of Trace Metals in Urban Soils in Wuhan, Central China. Environ Monit Assess. 2015;187(9):556. PubMed PMID: 26251059.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Spatial distribution and ecological risk assessment of trace metals in urban soils in Wuhan, central China. AU - Zhang,Chutian, AU - Yang,Yong, AU - Li,Weidong, AU - Zhang,Chuanrong, AU - Zhang,Ruoxi, AU - Mei,Yang, AU - Liao,Xiangsen, AU - Liu,Yingying, Y1 - 2015/08/07/ PY - 2015/01/22/received PY - 2015/07/20/accepted PY - 2015/8/8/entrez PY - 2015/8/8/pubmed PY - 2016/3/26/medline SP - 556 EP - 556 JF - Environmental monitoring and assessment JO - Environ Monit Assess VL - 187 IS - 9 N2 - Surface soil samples from 467 sample sites were collected in urban area of Wuhan City in 2013, and total concentrations of five trace metals (Pb, Zn, Cu, Cr, and Cd) were measured. Multivariate and geostatistical analyses showed that concentrations of Pb, Zn, and Cu are higher along Yangtze River in the northern area of Wuhan, gradually decrease from city center to suburbs, and are mainly controlled by anthropogenic activities, while those of Cr and Cd are relatively spatially homogenous and mainly controlled by soil parent materials. Pb, Zn, Cu, and Cd have generally higher concentrations in roadsides, industrial areas, and residential areas than in school areas, greenbelts, and agricultural areas. Areas with higher road and population densities and longer urban construction history usually have higher trace metal concentrations. According to estimated results of the potential ecological risk index and Nemero synthesis pollution index, almost the whole urban area of Wuhan is facing considerable potential ecological risk caused by soil trace metals. These results reveal obvious trends of trace metal pollution, and an important impact of anthropogenic activities on the accumulation of trace metals in soil in Wuhan. Vehicular emission, industrial activities, and household wastes may be the three main sources for trace metal accumulation. Increasing vegetation cover may reduce this threat. It should be pointed out that Cd, which is strongly accumulated in soil, could be the largest soil pollution factor in Wuhan. Effective measures should be taken as soon as possible to deal with Cd enrichment, and other trace metals in soil should also be reduced, so as to protect human health in this important large city. SN - 1573-2959 UR - https://www.unboundmedicine.com/medline/citation/26251059/Spatial_distribution_and_ecological_risk_assessment_of_trace_metals_in_urban_soils_in_Wuhan_central_China_ DB - PRIME DP - Unbound Medicine ER -