School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha, 410083, China.
Environ Sci Pollut Res Int. 2017 Dec;24(35):27573-27586. doi: 10.1007/s11356-017-0310-x. Epub 2017 Oct 5.
In recent years, international research on the toxicity of the heavy metal, antimony, has gradually changed focus from early medical and pharmacological toxicology to environmental toxicology and ecotoxicology. However, little research has been conducted for sources identification and risk management of heavy metals pollution by long-term antimony mining activities. In this study, a large number of investigations were conducted on the temporal and spatial distribution of antimony and related heavy metal contaminants (lead, zinc, and arsenic), as well as on the exposure risks for the population for the Yuxi river basin in the Hunan province, China. The scope of the investigations included mine water, waste rock, tailings, agricultural soil, surface water, river sediments, and groundwater sources of drinking water. Health and ecological risks from exposure to heavy metal pollution were evaluated. The main pollution sources of heavy metals in the Yuxi River basin were analyzed. Remediation programs and risk management strategies for heavy metal pollution were consequently proposed. This article provides a scientific basis for the risk assessment and management of heavy metal pollution caused by antimony basin ore mining.
近年来，国际上对重金属锑的毒性研究逐渐从早期的医学和药理学毒理学转向环境毒理学和生态毒理学。然而，对于长期锑矿开采活动造成的重金属污染的来源识别和风险管理，研究甚少。本研究对中国湖南省玉溪河流域的锑及相关重金属污染物（铅、锌和砷）的时空分布以及人群暴露风险进行了大量调查。调查范围包括矿水、废石、尾矿、农业土壤、地表水、河流沉积物和饮用水地下水水源。评估了重金属污染对健康和生态的风险。分析了玉溪河流域重金属的主要污染源。提出了重金属污染的修复方案和风险管理策略。本文为锑矿区矿石开采造成的重金属污染风险评估和管理提供了科学依据。
