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全国多环芳烃年排放量估算

Keywords: 多环芳烃,排放因子,年排放量,不确定性分析

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Abstract:

根据排放因子和相关排放活动的统计资料,估算了USEPA优先污染物清单中16种PAHs的全国年排放量。结果表明,1999年16种PAHs排放总量约为9799t,其中7种致癌性PAHs排放总量约2000t。主要排放源为家庭燃煤和炼焦,两者分别占总排放量的66.6%和30.6%。在75%置信区间上,估算结果的不确定性大致为正负一个数量级。PAHs排放谱中荧蒽、蒽、芘以及高环化合物比例显著高于北美大湖地区。

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