title: Source identification of eight hazardous heavy metals in agricultural soils of Huizhou, Guangdong Province, China.
abstract: One hundred and four surface samples and 40 profiles samples in agricultural soils collected from Huizhou in south-east China were monitored for total contents of 8 heavy metals, and analyzed by multivariate statistical techniques and enrichment factor (EF), in order to investigate their origins. The results indicate that the concentrations of Cu, Zn, Ni, Cr, Pb, Cd, As and Hg in soils are 16.74, 57.21, 14.89, 27.61, 44.66, 0.10, 10.19 and 0.22 mg/kg, respectively. Compared to the soil background contents in Guangdong Province, the mean concentrations of Hg, Cd, Zn, Pb and As in soil of Huizhou are higher, especially Hg and Cd, which are 2.82 and 1.79 times the background values, respectively. Cr, Ni, Cu, partially, Zn and Pb mainly originate from a natural source. Cd, As, partially, Zn mainly come from agricultural practices. However, Hg, partially, Pb originate mainly from industry and traffic sources.
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China. cailimei801156@hotmail.com
authors.forename: Limei
authors.initials: L
authors.lastname: Cai
authors.forename: Zhencheng
authors.initials: Z
authors.lastname: Xu
authors.forename: Mingzhong
authors.initials: M
authors.lastname: Ren
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Guo
authors.forename: Xibang
authors.initials: X
authors.lastname: Hu
authors.forename: Guocheng
authors.initials: G
authors.lastname: Hu
authors.forename: Hongfu
authors.initials: H
authors.lastname: Wan
authors.forename: Pingan
authors.initials: P
authors.lastname: Peng
mesh_terms: D000383:Agriculture; D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D019216:Metals, Heavy / Q000032:analysis*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants