垃圾焚烧设施周边环境空气重金属分布特征及呼吸暴露风险  

Characterization of airborne particulate metals in the surroundings of a municipal solid waste incinerator(MSWI) in the Nanshan Shenzhen and health risk assessment via inhalation exposure

作　　者：齐剑英[1] 张海龙[1,2] 方建德[1] 任明忠[1] 林必桂[1] 王雄[1] 张菲菲[1] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655 [2]广州大学环境科学与工程学院,广东广州510605

出　　处：《中国环境科学》2013年第S1期113-118,共6页China Environmental Science

基　　金：国家自然科学基金项目(41203061;40903044);环保公益性科研专项项目(201109001)

摘　　要：以深圳南山垃圾焚烧炉(MSWI)为研究对象,共采集环境空气样品18个,焚烧炉烟气样8个,研究分析了焚烧炉周围环境空气中重金属元素(Cu、Cd、Pb、Cr)和As的分布特征,并对分析结果应用相关分析和主成分分析,以判断其与垃圾焚烧炉间的关系,最后应用美国EPA Risk Assessment Guidance for Superfund(RAGS)风险评估模型对分析结果进行风险分析.结果显示,焚烧炉周边环境空气中Pb和Cd均在环境空气质量标准(GB3095-2012)范围之内;相关分析和主成分分析结果表明,焚烧炉对其周边环境重金属含量贡献量很小,远小于周边的工厂和公路等其他来源对其的影响;风险评估结果表明焚烧炉周边环境空气中重金属的致癌风险和非致癌风险均在安全范围之内.Take the Shenzhen Nanshan Municipal solid waste incinerator(MSWI) as the object, in total 18 ambient air samples and 8stacks gas samples were got. The study analyzed the distribution characteristics of incinerator ambient air heavy metals(Cu, Cd, Pb, Cr) and As in the surroundings of the MSWI. Correlation coefficients and principal component analysis were used to analyzed the relationship between stack gas emission and ambient air in the surrounding of the MSWI. The EPA Risk Assessment Guidance for Superfund(RAGS) was used to assess the exposure risk. The results demonstrated that the Pb and Cd value in the surroundings of the MSWI were in the accept level according to the Ambient Air Quality Standards(GB3095-2012); correlation coefficients and principal component analysis showed that the MSWI makes a small amount contributions for its surroundings heavy metals value. The risk assessment showed that the carcinogenic and non-carcinogenic risks via inhalation exposure were in the accessible levels.

关 键 词：垃圾焚烧 重金属 健康风险评价 

分 类 号：X503.1[环境科学与工程—环境工程]