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Mercury speciation and mobility in salt slurry and soils from an abandoned chlor-alkali plant, Southwest China
Chuan Wang; Zhengcheng Song; Zhonggen Li; Wei Zhu; Ping Li; Xinbin Feng
2019
Source PublicationScience of The Total Environment
Volume652Pages:900-906
Abstract

Chlor-alkali plants (CAPs) are major consumers of mercury (Hg) and may be a source of severe Hg pollution to the environment. In this paper, the total mercury (THg) concentrations and the speciation and mobility of Hg were measured in salt slurry and soils collected from an abandoned CAP in Yunnan Province, China. THg concentrations in the salt slurry samples varied widely and ranged from 0.43 to 2640 mg/kg; THg concentrations varied vertically and were lower towards the surface than deeper in the profile. In the soils, a sample collected from electrolysis workshop had the highest THg concentration (3650 mg/kg). The main fractions of Hg in the salt slurry and soils were Hg2+ and Hg0, which accounted for 47.4% and 22.9% of THg in the salt slurry and 28.0% and 43.8% of THg in the soils on average, respectively. The Hg0 concentrations decreased with depth in the soil profiles. The total soluble Hg (TSHg) concentrations in the salt slurry averaged at 140 μg/L and ranged from 0.77 to 564 μg/L. The salt slurry and soils at the study site were seriously contaminated with Hg, which could potentially be released to the atmosphere or water bodies.

KeywordChlor-alkali salt Slurry soil mercury Speciation mobility
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10247
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
2.University of Chinese Academy of Sciences, Beijing, 100049, China
3.Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou University, Guiyang, 550003, China
Recommended Citation
GB/T 7714
Chuan Wang,Zhengcheng Song,Zhonggen Li,et al. Mercury speciation and mobility in salt slurry and soils from an abandoned chlor-alkali plant, Southwest China[J]. Science of The Total Environment,2019,652:900-906.
APA Chuan Wang,Zhengcheng Song,Zhonggen Li,Wei Zhu,Ping Li,&Xinbin Feng.(2019).Mercury speciation and mobility in salt slurry and soils from an abandoned chlor-alkali plant, Southwest China.Science of The Total Environment,652,900-906.
MLA Chuan Wang,et al."Mercury speciation and mobility in salt slurry and soils from an abandoned chlor-alkali plant, Southwest China".Science of The Total Environment 652(2019):900-906.
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