多金属矿带环境质量与居民的全膳食暴露研究-以广西南丹为例

项目名称： 多金属矿带环境质量与居民的全膳食暴露研究-以广西南丹为例

项目编号： No.41261082

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 钟雪梅

作者单位： 桂林理工大学

项目金额： 50万元

中文摘要： 广西南丹多金属矿带内蕴藏着丰富的锡、锌、铅、砷和铟等（类）金属矿产资源，其中砷储量分别占全国和全球的27%和19%。经过多年的开采和冶炼，矿区周边及下游地区生态环境严重恶化，大量含砷、镉、铅等重金属废水直接排入刁江。受影响区域的土壤和农产品质量如何呢，居民重金属暴露量是安全的吗？到底有多大隐患呢？这些问题尚无从回答，需要开展系统调查。项目以土壤-农产品-人体健康为主线，将头发中砷等污染物含量作为指示，以广西南丹多金属矿带及其周边区域为研究对象，集成环境地学、地统计学、环境化学和土壤学多学科的理论与方法，系统调查研究区域土壤、发样和农产品中优先污染物含量；通过全膳食调查，评估多金属矿带及周边区域人群砷、铅和镉等主要污染物的摄入量与健康风险，并据此提出降低风险的应对措施。

中文关键词： 南丹；重金属；全膳食；健康风险；地质高背景

英文摘要： The Nandan, Located in the northwest of Guangxi Zhuang Autonomous Region, polymetallic belt bears rich resources of Arsenic, mercury, zinc, copper, cadmium, chromium, nickel, lead, tin, indium and gallium, which of arsenic reserves accounted for 27 percent of our country and 19 percent of the world. After years of Mining activities, the ecological environment in mining area and its downstream seriously deteriorated, and a large number of waste water with heavy metal, such as arsenic, cadmium and lead, discharged into the Diao River. How about quality of soil and agricultural products influenced by mining activities? And the residents of heavy metal exposure are safe? What is impact on human body? These issues are not yet to be answered and need for systematic investigation. With the core of soil - hair - agriculture products- human health, the methods of multi-disciplinary of geostatistics, environmental chemistry and soil science are adopted. And a systematic investigation will be conducted on the metal concentration in soil and agricultural products in the Nandan County. Combined with geostatistics and classical statistical methods, the soil - crop contaminants relationships will be fitted. The full dietary survey will be implemented to assess the risk of intake of arsenic, lead and cadmium and other pollutant

英文关键词： Nandan County；Heavy metal；full-diet investigation；health risk；High Geological background