Pollution characteristics of ambient PM2.5-bound PAHs and NPAHs in a typical winter time period in Taiyuan
Pollution characteristics of ambient PM2.5-bound PAHs and NPAHs in a typical winter time period in Taiyuan
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太原市冬季典型时段环境PM2.5结合PAHs和NPAHs污染特征
DOI：
10.1016/j.cclet.2014.03.032
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发表时间：
2014-05-01
影响因子：
9.1
通讯作者：
Cai, Zong-Wei
中科院分区：
文献类型：
--
作者：
Li, Rui-Jin;Kou, Xiao-Jing;Cai, Zong-Wei
调查了中国在太原市冬季典型时段采集的环境细颗粒物(PM2.5)中多环芳烃(PAHs)和硝化多环芳烃(NPAHs)的污染特征。结果表明，PM2.5上PM2.5、Sigma NPAHs(16种多环芳烃之和)和Sigma NPAHs(3种之和)的平均质量浓度分别为161.4µg/m(3)、119.8 ng/m(3)和0.446 ng/m(3)。PAHs和NPAHs的诊断率表明，煤炭消费可能是PM2.5污染的主要来源。测得的PM2.5质量浓度、BaP当量毒性(28.632 ng/m(3))和个体致癌指数(3.14×10(-5))均远高于推荐的安全标准。(C)2014年川东和蔡宗伟。爱思唯尔公司代表中国化学会出版。版权所有。
The pollution characteristics of ambient fine particulate matter (PM2.5) containing polycyclic aromatic hydrocarbons (PAHs) and nitrated PAHs (NPAHs) in samples collected during a typical winter time period in Taiyuan of China were investigated. The obtained results revealed that the mean mass concentrations of PM2.5, Sigma NPAHs (sum of 16 PAHs) and Sigma NPAHs (sum of 3 NPAHs) on PM2.5 were 161.4 mu g/m(3), 119.8 ng/m(3) and 0.446 ng/m(3), respectively. Diagnostic ratios of PAHs and NPAHs implied that coal consumption might be the main source of the PM2.5 pollution. The measured PM2.5 mass concentrations, BaP equivalent toxicity (28.632 ng/m(3)) and individual carcinogenicity index (3.14 x 10(-5)) were much higher than those of the recommended safety standards. (C) 2014 Chuan Dong and Zong-Wei Cai. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.