泸州市区环境空气非甲烷烃现状及对臭氧生成的研究  

Present Situation of None-Methane Hydrocarbons in Ambient Air and Its Influence on Ozone Generation in Luzhou City

作　　者：杨益 汤利 童益 唐永洪 伍丽娟 YANG Yi;TANG Li;TONG Yi;TANG Yong-hong;WU Li-juan(Luzhou Environmental Monitoring Center Station,Luzhou,Sichuan 646000,China)

机构地区：[1]四川省泸州生态环境监测中心站,四川泸州646000

出　　处：《四川环境》2022年第3期113-116,共4页Sichuan Environment

摘　　要：为研究泸州市区非甲烷总烃特征、来源以及对臭氧生成的影响,采用了生态环保部制定的标准方法 《环境空气总烃、甲烷和非甲烷总烃的测定直接进样-气相色谱法》HJ 604-2017对泸州市区环境空气中非甲烷总烃进行监测,并结合空气自动监测站臭氧监测数据分析。结果表明:非甲烷总烃受机动车尾气不完全燃烧影响较大,8~12月非甲烷总烃比5~8月非甲烷总烃浓度高,8月和12月非甲烷总烃浓度变化最大;高浓度非甲烷总烃可能主要来源于黄舣酒业园区印刷包装企业产生的VOCs和连江路主干道交通拥堵机动车尾气的排放;(11~2月)寒冷气候条件下,非甲烷总烃对臭氧生成贡献较大。研究结果为泸州市大气污染防治政策的制定提供科学支撑。In order to study the characteristics and sources of non-methane total hydrocarbon and its influence on ozone generation in Luzhou city,this paper adopted the standard method 《Determination of Total Hydrocarbons,Methane and Non-methane in Ambient Air-Direct Sampling-Gas Chromatography》 HJ 604-2017 formulated by the Ministry of Environmental Protection to monitor the total non-methane hydrocarbon in ambient air of Luzhou urban area and analyze the ozone monitoring data of air automatic monitoring station. The results showed that the concentration of total non-methane hydrocarbon is affected greatly by motor vehicle exhaust Incomplete combustion,the total non-methane hydrocarbon concentration concentration was higher from August to December than from May to August,the total hydrocarbon concentration of non-methane changed the most in August and December. The high concentration of total non-methane hydrocarbon mainly comes from VOCs generated by printing and packaging enterprises in wine industrial park of Huang yi and vehicle exhaust emissions from traffic congestion in the main road of Lian jiang Road. The contribution of non-methane hydrocarbon to ozone formation is greater in the cold climate( November-February). Above results provide scientific support for the formulation of air pollution control policies in Luzhou City.

关 键 词：大气环境 非甲烷总烃 影响因素 臭氧生成 

分 类 号：X511[环境科学与工程—环境工程] X830