引用本文:张丹,南淑清,王维思,赵新娜,多克辛,张军.郑州大气及颗粒物中多环芳烃的分布特征与来源解析[J].环境监控与预警,2016,8(3):48-52
ZHANG Dan, NAN Shu qing, WANG Wei si, ZHAO Xin na, DUO Ke xin, ZHANG Jun.Distribution Characteristics and Source Apportionment of PAHs in Atmosphere and Particulates in Zhengzhou[J].Environmental Monitoring and Forewarning,2016,8(3):48-52
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郑州大气及颗粒物中多环芳烃的分布特征与来源解析
张丹,南淑清,王维思,赵新娜,多克辛,张军
作者单位
张丹,南淑清,王维思,赵新娜,多克辛,张军 河南省环境监测中心河南 郑州 450004 
摘要:
对2012年郑州市大气中气态和颗粒态多环芳烃(PAH<sub>s</sub>)的分布特征与来源进行了分析。结果表明,ρ(∑PAH<sub>s</sub>) (包括气相与颗粒相)为23.27~194.61 ng/m<sup>3</sup>,气相中∑PAH<sub>s</sub>高于颗粒相,四环以下的PAH<sub>s</sub>大都存在于气态中;在夏、春2季,较小分子质量(≤178)的PAH<sub>s</sub>占比较高,冬季,较大分子质量(≥252)的PAHs占比明显较高;各功能区ρ(PAH<sub>s</sub>)排序为工业区>交通密集区>医疗、文化、行政混合区。郑州大气和颗粒物中PAH<sub>s</sub>可能主要来自煤和液体燃料(汽油柴油)的燃烧。
关键词:  环境空气  气态多环芳烃  颗粒态多环芳烃  来源解析  郑州
DOI:
分类号:X513
基金项目:2011年河南省科技攻关重点基金资助项目(11210231005)
Distribution Characteristics and Source Apportionment of PAHs in Atmosphere and Particulates in Zhengzhou
ZHANG Dan, NAN Shu qing, WANG Wei si, ZHAO Xin na, DUO Ke xin, ZHANG Jun
Abstract:
This work analyzed the distribution characteristics and sources of both gaseous and particulate polycyclic aromatic hydrocarbons (PAH<sub>s</sub>) in urban atmosphere of Zhengzhou City in 2012. The results showed that the total mass concentration of PAH<sub>s</sub> in atmosphere, including gaseous and particulate, was between 40.00 to 194.61 ng/m<sup>3</sup>, and that mass concentration of gaseous PAHs was higher than that of the particulate forms. PAH<sub>s</sub> containing less than four aromatic rings mainly existed in gaseous forms. In spring and summer, a relatively high proportion of PAH<sub>s</sub> were molecules having masses below 178, while in winter, this was the case with PAH<sub>s</sub> having molecular masses above 252. Mass concentration of PAH<sub>s</sub> decreased with the following functional areas: industrial area, traffic compact area, and living area. The major sources of gaseous and particulate PAH<sub>s</sub> in atmosphere were possibly from the burning of coal and liquid fuel (gasoline and diesel oil).
Key words:  Ambient air  Gaseous polycyclic aromatic hydrocarbon  Particulate polycyclic aromatic hydrocarbon  Source apportionment  Zhengzhou