河北城市霾污染来源的模拟研究

选取2007年12月作为模拟时段,以MM5-Models-3/CMAQ为核心工具,对河北地区4个主要城市(石家庄、邢台、邯郸、保定)的霾污染来源进行了模拟研究,结果表明:工业源和民用燃烧源对河北4城市PM2.5浓度贡献率最大,分别为28.1%³5.4%,29.1%35.4%,29.1%³1.8%。河北4市受工业源排放影响最大的为保定市(35.4%),其余为石家庄(31.7%)、邢台(28.3%)、邯郸(28.1%)。受民用燃烧源影响最大的依然为保定市(31.8%),其余为邯郸(30.0%)、邢台(29.1%)、石家庄(27.5%)。电厂源、民用非燃烧源和交通源的贡献率较小,分别为0.5%31.8%。河北4市受工业源排放影响最大的为保定市(35.4%),其余为石家庄(31.7%)、邢台(28.3%)、邯郸(28.1%)。受民用燃烧源影响最大的依然为保定市(31.8%),其余为邯郸(30.0%)、邢台(29.1%)、石家庄(27.5%)。电厂源、民用非燃烧源和交通源的贡献率较小,分别为0.5%².5%,0.4%2.5%,0.4%⁰.9%,2.0%0.9%,2.0%².3%。对于消光系数的部门来源,最大的依然是工业源和民用燃烧源,民用燃烧源对河北地区消光系数平均贡献率分别为石家庄20.7%,邢台29.1%,邯郸30.7%,保定30.6%;工业源的贡献率分别为石家庄18.2%,邢台15.9%,邯郸16.8%以及保定22.4%。

Simulation Study of Haze Pollution Sources in Cities of Hebei Province

MM5-Models-3/CMAQ air quality modeling system,as a core tool,was applied to simulate the sources of haze pollution in December 2007 in 4 major cities of Hebei Province which included Shijiazhuang,Xingtai,Handan and Baoding. Results indicated that industrial source and residential combustion source were main contributions of PM 2.5 concentration in Hebei Province,and their contributions ranged from 28.1%~35.4%,29.1%~31.8% respectively.The largest contribution from industrial source was Baoding(35.4%),followed by Shijiazhuang(31.7%),Xingtai(28.3%) and Handan(28.1%).And the greatest impact by civilian combustion source was still Baoding(31.8%),and followed by Handan(30.0%),Xingta(i29.1%) and Shijiazhuang(27.5%).The contribution rates of plant source,civilian non-combustion source and traffic source were very small,ranged from 0.5%~2.5%,0.4%~0.9%,2.0%~2.3% respectively.The largest sector sources of extinction coefficient still were industrial source and civilian combustion source.For civil combustion source,average contributions were Shijiazhuang 20.7%,Xingtai 29.1%,Handan 30.7% and Baoding 30.6%,while the contributions of industrial source were Shijiazhuang 18. 2%,Xingtai 15.9%,Handan 16.8% and Baoding 22.4% respectively.