دورية أكاديمية
Characteristics and risk assessment of heavy metals in groundwater at a typical smelter-contaminated site in Southwest China.
| العنوان: | Characteristics and risk assessment of heavy metals in groundwater at a typical smelter-contaminated site in Southwest China. |
|---|---|
| المؤلفون: | Zhang K; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China., Mao K; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China. Electronic address: maokang@mail.gyig.ac.cn., Xue J; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China; University of Chinese Academy of Sciences, Beijing, 100049, China., Chen Z; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China., Du W; Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China., Zhang H; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China. |
| المصدر: | Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Sep 15; Vol. 357, pp. 124401. Date of Electronic Publication: 2024 Jun 19. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Applied Science Publishers Country of Publication: England NLM ID: 8804476 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6424 (Electronic) Linking ISSN: 02697491 NLM ISO Abbreviation: Environ Pollut Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Barking, Essex, England : Elsevier Applied Science Publishers, c1987- |
| مواضيع طبية MeSH: | Groundwater*/chemistry , Metals, Heavy*/analysis , Water Pollutants, Chemical*/analysis , Environmental Monitoring* , Soil Pollutants*/analysis , Arsenic*/analysis, China ; Risk Assessment ; Metallurgy |
| مستخلص: | To explore the characteristics and evaluate the risk of heavy metals in groundwater at a typical smelter-contaminated site, this study focuses on a representative a historical arsenic smelting plant in Southwest China, where the primary historical products were metallic arsenic (∼1000 tons/year) and arsenic trioxide (∼2000 ton/year). The results demonstrated As and Pb as the main pollutants in soil, and As and Cd as main pollutants in groundwater through soil profiling and quarterly groundwater analysis. The maximum As and Pb in the surface soil were 76800 and 2290 mg/kg, respectively, with As vertically infiltrating the deep gravel-sand layer (18-20 m). The groundwater pollution distribution progressively increased along flow direction, influenced by seasonal surface runoff and infiltration fluctuations. The groundwater pollutant concentrations during the dry season notably surpassed those during the wet season, with maximum As and Cd concentrations of 111.64 mg/L and 19.85 μg/L during the dry season, respectively. Furthermore, the analytic hierarchy process (AHP) was applied to evaluate the comprehensive risk of contaminated-site across pollution source load, regional groundwater intrinsic vulnerability, and evaluation of nearby sensitive receptors. The results revealed that the carcinogenic risk of lead in surface soil was moderate to high, while arsenic posed a high carcinogenic risk, contributing to an overall carcinogenic risk proportion of 89.6% in surface soil. Exposure through groundwater intake was identified as the primary pathway, with carcinogenic and noncarcinogenic risks exceeding those through skin contact. The final weights result demonstrated that the principal risk factors are the intrinsic arsenic load and protective target characteristics of regional groundwater at this site. This study provides a reference for comprehensive assessments of similarly contaminated industrial and smelting sites. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2024 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Analytical hierarchy process; Arsenic; Groundwater; Risk evaluation; Southwest China |
| المشرفين على المادة: | 0 (Metals, Heavy) 0 (Water Pollutants, Chemical) 0 (Soil Pollutants) N712M78A8G (Arsenic) |
| تواريخ الأحداث: | Date Created: 20240621 Date Completed: 20240819 Latest Revision: 20240819 |
| رمز التحديث: | 20240820 |
| DOI: | 10.1016/j.envpol.2024.124401 |
| PMID: | 38906401 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1873-6424 |
|---|---|
| DOI: | 10.1016/j.envpol.2024.124401 |