无锡市锡山区棕(褐)地环境风险评价研究  

Brownfield environmental risk assessment on Xishan District, Wuxi City

作　　者：林佳佳[1] 王维[1] 居婕[1] 刘晓磊[2] 孙华[1] 

机构地区：[1]南京农业大学资源环境与城乡规划系,江苏南京210095 [2]江苏省环境保护厅,江苏南京210036

出　　处：《中国环境科学》2013年第4期748-753,共6页China Environmental Science

基　　金：国土资源部公益性科研专项经费项目(200811087;201111011);国家自然科学基金资助项目(71233004;71073082);青蓝工程

摘　　要：以无锡市锡山区为研究区域,采用NAS四步法和潜在生态危害指数法对锡山区棕(褐)地存在的环境风险(人体健康风险和生态风险)进行评价.结果显示锡山区棕(褐)地对附近居民中的成人产生的健康风险中致癌风险为7.06 10-8,非致癌风险为1.21 10-1,对儿童产生的健康风险中致癌风险为1.16 10-7,非致癌风险为5.67 10-2,已接近风险可接受水平,其中重金属Pb和Cr在非致癌风险评价中贡献率较大;棕(褐)地对周围环境产生的生态风险已处于中度危害水平,重金属Cd产生的生态风险最为严重;在锡山区四大城市发展模块中,锡东新城存在的环境风险最大,安镇—羊尖新市镇和东港—锡北新市镇次之,存在的风险水平相近,鹅湖新市镇最小.The NAS four-step and potential ecological risk index were used to evaluate the Xishan brownfield environment risk which included the health risk and ecology risk. The health risk was against the nearby residents （both the adults and children）, while the ecology risk was against the surrounding environment. The results show that the adult and child carcinogenic risk was 7.06x108 and 1.16.~107, respectively, and the adult and child non-carcinogenic risk was 1.12xl0-1and 5.76.x102, respectively . The heavy metals Pb and Cr produced more non-carcinogenic risk. The ecology risk was in moderate hazard in Xishan District. The ecology risk caused by the heavy metal Cd was the most serious. Among the four urban development module in Xishan District, the environment risk in the Tin East Metro was the maximum, followed by Anzhen-Yangjian and Donggang-Xibei new towns, and the Swan Lake new towns was the least.

关 键 词：棕(褐)地 环境风险评价 锡山区 

分 类 号：X820.4[环境科学与工程—环境工程]