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zhu san jiao mou la ji fen shao chang zhou bian huan jing kong qi zhong jin shu fen bu te zheng yan jiu
Author(s): 
Pages: 1833-1839
Year: Issue:  7
Journal: Acta Scientiae Circumstantiae

Keyword:  MSWIenvironmental airflue gasheavy metal;
Abstract: 以华南某垃圾焚烧厂为研究对象,根据研究区域主导风向特点,以焚烧炉为中心进行布点,累积采集环境空气样98个,焚烧炉烟气9个,分析了焚烧炉周围环境空气中重金属的空间分布特征.同时,采用相关分析和主成分分析法,分析了焚烧炉周围环境空气TSP中重金属含量与焚烧炉烟气中重金属含量的关系.结果表明,焚烧炉周围环境空气中各重金属的含量(μg·m-3)排序为:Fe(0.766~19.551)>Zn(0.791~1.833)>Mn(0.431~1.014)>Pb(0.263~0.626)>Cu(0.054~0.578)>Cr(0.057~0.180)>Ni(0.030~0.106)>Cd(0.017~0.044)>As(0.009~0.014)>Tl(0.002~0.004).焚烧炉烟气各重金属含量(μg·m-3)排序为:Zn(90~4570)>Ni(4~3510)>Cr(2~650)>Cu(5~1380)>Pb(25~430)>Cd(2~53)>Tl(0.1~3).分析各元素空间分布特征发现,除与距焚烧炉距离远近有关外,其他人为活动(如农业活动)对焚烧炉周围环境空气中重金属含量也有一定的贡献.对各采样点金属含量进行相关性分析,发现焚烧炉烟气与其他采样点的重金属间有显著相关性(r>0.81,p<0.05),对各采样点元素含量进行主成分分析也得到了相似结论,说明焚烧炉对周围环境空气重金属含量有直接影响.
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