title: Antimony release from contaminated mine soils and its migration in four typical soils using lysimeter experiments.
abstract: Antimony (Sb) can pose great risks to the environment in mining and smelting areas. The migration of Sb in contaminated mine soil was studied using lysimeter experiments. The exchangeable concentration of soil Sb decreased with artificial leaching. The concentrations of Sb retained in the subsoil layers (5-25cm deep) were the highest for Isohumosol and Ferrosol and the lowest for Sandy soil. The Sb concentrations in soil solutions decreased with soil depth, and were adequately simulated using a logarithmic function. The Sb migration pattern in Sandy soil was markedly different from the patterns in the other soils which suggested that Sb may be transported in soil colloids. Environmental factors such as water content, soil temperature, and oxidation-reduction potential of the soil had different effects on Sb migration in Sandy soil and Primosol. The high Fe and Mn contents in Ferrosol and Isohumosol significantly decreased the mobility of Sb in these soils. The Na and Sb concentrations in soils used in the experiments positively correlated with each other (P<0.01). The Sb concentrations in soil solutions, the Sb chemical fraction patterns, and the Sb/Na ratios decreased in the order Sandy soil>Primosol>Isohumosol>Ferrosol, and we concluded that the Sb mobility in the soils also decreased in that order.
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beijing 100012, China; Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China.
authors.forename: Yu-Xian
authors.initials: YX
authors.lastname: Shangguan
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beijing 100012, China.
authors.forename: Long
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Soil and Fertilizer Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China.
authors.forename: Yusheng
authors.initials: Y
authors.lastname: Qin
authors.affiliation: State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beijing 100012, China. Electronic address: houhong@craes.org.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Hou
authors.affiliation: Yunnan Agricultural University, Kunming 650201, China.
authors.forename: Naiming
authors.initials: N
authors.lastname: Zhang
mesh_terms: D000965:Antimony / Q000032:analysis*; D004787:Environmental Pollution / Q000032:analysis; D007220:Industrial Waste / Q000032:analysis*; D007501:Iron / Q000032:analysis; D008345:Manganese / Q000032:analysis; D008906:Mining; D010084:Oxidation-Reduction; D012964:Sodium / Q000032:analysis; D012987:Soil / Q000737:chemistry* / Q000145:classification; D012989:Soil Pollutants / Q000032:analysis*; D012995:Solubility; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D007220:Industrial Waste; D012987:Soil; D012989:Soil Pollutants; D014867:Water; D008345:Manganese; D000965:Antimony; D012964:Sodium; D007501:Iron
keywords: Antimony; Lysimeter experiments; Migration; Mobility; Sb mining soil