河北工业科技2025，Vol.42Issue(5)：456-468,13.DOI:10.7535/hbgykj.2025yx05007
石家庄市O3攻坚期大气VOCs污染特征及来源解析
Characteristics and source apportionment of atmospheric VOCs pollution in Shijiazhuang City during O3 control period
摘要
Abstract
In order to reduce the impact of ozone(O3)on the ambient air quality and promote the continuous improvement of the ambient air quality in Shijiazhuang City,the method of characteristic ratio and positive matrix factorization(PMF)were used to analyze the sources of volatile organic compounds(VOCs)in the atmosphere in Shijiazhuang City during the period of O3 pollution prevention and control campaign(hereinafter referred to as the O3 campaign period)from May to September 2024.The results show that:1)The frequent occurrence of high value of O3 in Shijiazhuang city during the O3 control period was affected by the unfavorable meteorological factors and high concentration of O3 precursors;2)The mass concentration of VOCs was 80.3 μg/m3 during the O3 control period,and the mass concentration of VOCs on O3 exceeded days was 8.7 μg/m3 higher than that on O3 non-exceeded days;Oxygenated VOCs(OVOCs)components contribute the most in the three periods,with acetone contributing the highest among the top 15 VOCs species;3)The ozone formation potential(OFP)and hydroxyl consumption rate(L·OH)during the O3 control period were 188.7 μg/m3 and 8.3 s-1,respectively,and the OFP and L·OH on O3 exceeded days were 22.2 μg/m3 and 3.2 s-1 higher than those on non-exceeded days,respectively;4)The results of refined source apportionment show that during the O3 control period,VOCs are most affected by petrochemicals and chemicals,as well as vehicle exhaust emissions;The contribution of VOCs from surface coating,cement/glass,plant emission,pharmaceutical manufacturing,electricity and pesticide use on O3 exceeded days is higher than that on O3 non-exceeded days,while the contribution of VOCs from vehicle,petrochemicals and chemicals,and non-road mobile machinery is lower than that on O3 non-exceeded days.The research results provide a basis for further pollution control of petrochemical and chemical industries,as well as vehicle exhaust emissions in Shijiazhuang.and also provide data support for the adoption of targeted pollution source control plans and the reduction of the impact of O3 on environmental air quality.关键词
大气污染防治/O3攻坚期/挥发性有机物(VOCs)/臭氧生成潜势(OFP)/羟基消耗速率(L·OH)/特征比值/源解析Key words
air pollution prevention and control/O3 control period/volatile organic compounds(VOCs)/ozone formation potential(OFP)/hydroxyl consumption rate(L·OH)/characteristic ratio/source apportionment分类
资源环境引用本文复制引用
冯亚龙,强杰,张静,白金蕊,王玮..石家庄市O3攻坚期大气VOCs污染特征及来源解析[J].河北工业科技,2025,42(5):456-468,13.基金项目
河北省"三三三人才工程"资助项目(A202001075) （A202001075）
