太原城区大气醛酮化合物的污染特征  

Pollution Characteristics of Atmospheric Aldehydes and Ketones in the Urban area Taiyuan

作　　者：王敬 张璐 刘泽乾 路飞 冯艳丽[2] 何秋生[1] 王新明[3] WANG Jing;ZHANG Lu;LIU Ze-qian;LU Fei;FENG Yan-li;HE Qiu-sheng;WANG Xin-ming(School of Environment and Security,Taiyuan University of Science and Technology,Taiyuan 030024,China;Shanghai University,Institute of Environmental Pollution and Health,Shanghai 200444,China;Guangzhou institute of Geochemistry,Chinese Academy of Sciences,State Key Laboratory of Organic Geochemistry,Guangzhou 510630,China)

机构地区：[1]太原科技大学环境与安全学院,太原030024 [2]上海大学环境污染与健康研究所,上海200444 [3]中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州510630

出　　处：《太原科技大学学报》2020年第2期83-87,共5页Journal of Taiyuan University of Science and Technology

基　　金：国家自然基金(41172316);海外及港澳学者合作研究基金项目(41728008);山西省研究生创新项目(2019SY498)。

摘　　要：通过DNPH衍生剂采样-高效液相色谱法分析,研究了太原市秋冬两季的醛酮污染物的浓度水平,变化规律及来源分析。结果表明:醛酮化合物的浓度变化为秋季(20. 78±6. 34μg·m^-3)>冬季(17. 08±9. 50μg·m^-3),其中甲醛、乙醛和丙酮是大气中含量最丰富的三种物质,在秋冬季共占醛酮化合物总浓度的79. 99%和78. 75%.日变化和C1/C2值分析显示太原市大气醛酮化合物浓度水平与碳氢化合物的光化学反应以及车辆尾气排放有关。除此之外,煤及生物质等燃烧源的影响也不容忽视。In this study,the concentration,variation and source analysis of aldehyde and ketone pollutants in autumn and winter of Taiyuan City were studied by DNPH derivatization sampling-high performance liquid chromatography( HPLC). The results showed that the concentration level of aldehydes and ketones was autumn( 20. 78 ±6. 34 μg·m^-3) > winter( 17. 08 ± 9. 50 μg·m^-3),among which formaldehyde,acetaldehyde and acetone were the most abundant three substances in the atmosphere,accounting for 79. 99% and 78. 75% of the total concentration of aldehydes and ketones compounds in autumn and winter. According to the daily variation and the C1/C2 ratio analysis,the concentration level of atmospheric aldehydes and ketones in Taiyuan City is related to the photochemical reaction of hydrocarbons and vehicle exhaust emission. In addition,the impact of combustion sources such as coal and biomass cannot be ignored.

关 键 词：醛酮化合物 污染特征 相关性 变化规律 

分 类 号：X511[环境科学与工程—环境工程]