干旱区地理2025，Vol.48Issue(12)：2111-2121,11.DOI:10.12118/j.issn.1000-6060.2025.040
博斯腾湖流域小微湿地重金属污染及潜在风险评估
Pollution and potential risk assessment of heavy metals in small wetlands in the Bosten Lake Basin
摘要
Abstract
Small wetlands in arid regions are of critical importance to the stability of ecosystems and human life and survival.A total of 86 water samples were collected from representative small wetlands within the Bosten Lake Basin in Xinjiang,China to determine the contents of six heavy metal elements,including Cu,Zn,Pb,Cd,Hg,and As.The Nemerow comprehensive pollution index,ecological risk index,and the US EPA health risk as-sessment model were employed to analyze pollution levels,potential ecological and health risks of heavy metals in small wetlands.The findings indicated that the average concentrations of each heavy metal in the small wet-lands within the study area were lower than the Class III standard limit stipulated in the Environmental Quality Standards for Surface Water(GB 3838-2002).The single pollution index and comprehensive pollution index of six heavy metals in the small wetlands fall into the non-pollution level.The single ecological risk index and com-prehensive ecological risk index of heavy metals in small wetlands are classified as low ecological risk.The po-tential health risks assessment revealed that the non-carcinogenic risks caused by six heavy metals in these wet-lands were found to be within acceptable limits.However,the carcinogenic risks posed by Cd and As were found to be within acceptable parameters as well.The potential non-carcinogenic and carcinogenic health risks of six heavy metals in small wetlands are higher for adults than for children.Overall,Hg was identified as the predomi-nant pollution and ecological risk factor,while As was determined to be the primary potential health risk factor for small wetlands within the study area.The findings of this study offer a scientific foundation for the environ-mental security of water in arid regions.关键词
小微湿地/重金属/污染/潜在风险/博斯腾湖流域Key words
small wetland/heavy metal/pollution/potential risk/Bosten Lake Basin引用本文复制引用
CHEN Mingli,Maimaitituerxun AIZEZI,WANG Liling,HU Yonglong..博斯腾湖流域小微湿地重金属污染及潜在风险评估[J].干旱区地理,2025,48(12):2111-2121,11.基金项目
新疆维吾尔自治区自然科学基金(2023D01E08) （2023D01E08）
国家自然科学基金项目(U2003301)资助 （U2003301）
