邯郸市大气挥发性有机物季节性浓度变化分析  

Analysis of Seasonal Concentration Variations of Atmospheric Volatile Organic Compounds in Handan City

作　　者：代斌 Dai Bin(Hebei Handan Ecological Environment Monitoring Center,Handan 056002,Hebei,China)

机构地区：[1]河北省邯郸生态环境监测中心,河北邯郸056002

出　　处：《绿色科技》2024年第22期201-204,共4页Journal of Green Science and Technology

摘　　要：为分析邯郸市大气挥发性有机物(VOCs)的季节性浓度变化特征,给制定针对性的大气污染控制策略提供科学依据。采用AMA GC5000型VOCs在线色谱监测仪,于2023年1-12月对邯郸市大气进行连续监测,测定56种VOCs的体积浓度,对4类VOCs主要组分及主要VOCs典型化合物的季节性、月变化数据进行了统计分析。结果表明:4类VOCs主要组分在不同季节间存在显著差异(P<0.05)。烷烃浓度夏季最高,芳香烃和烯烃浓度秋冬季节较高,炔烃浓度冬季达到峰值;主要VOCs典型化合物不同的季节性变化趋势为:乙烯、乙烷、丙烷冬季浓度显著升高,异戊烷、2-甲基戊烷春夏季节浓度较高,正十二烷秋季出现显著高值。VOCs浓度月变化呈近“W”形波动,1月份、7月份和12月份出现高值。邯郸市大气VOCs浓度具有明显的季节性和月变化特征,冬季和夏季是VOCs的排放高峰。This study aims to analyze the seasonal concentration variation characteristics of atmospheric volatile organic compounds(VOCs)in Handan City,providing a scientific basis for formulating targeted air pollution control strategies.An AMA GC5000 online chromatographic monitor was employed to continuously measure the atmospheric VOCs in Handan City from January to December 2023,determining the volume concentrations of 56 VOC species.Statistical analyses were conducted on the seasonal and monthly variations of four main VOC groups and major VOC components.Significant differences(P<0.05)were observed among the four main VOC groups across seasons.Alkanes exhibited peak concentrations in summer,while aromatics and alkenes showed higher concentrations in autumn and winter.Alkynes reached their maximum levels in winter.Major VOC components displayed diverse seasonal trends.Ethylene,ethane,and propane concentrations increased significantly in winter;isopentane and 2-methylpentane levels were higher in spring and summer;and n-dodecane showed a notable peak in autumn.Monthly VOC concentrations demonstrated an approximate W-shaped fluctuation,with peaks occurring in January,July,and December.Atmospheric VOC concentrations in Handan City exhibit distinct seasonal and monthly variation patterns,with winter and summer being the primary emission peaks for VOCs.

关 键 词：大气挥发性有机物 季节性 浓度变化 邯郸市 

分 类 号：X511[环境科学与工程—环境工程]