摘要
本文通过对永州市2021年冬季期间大气污染情况进行分析,研究颗粒物对大气质量的影响程度,并基于颗粒物组分数据和传输模型,对冬季大气污染来源进行解析,为当地后续的大气污染管控防治工作提供科学支撑。结果表明:永州市冬季PM_(2.5)和PM_(10)浓度占比达到60.6%,为冬季大气环境质量的主要影响参数。永州市大气污染受到外部输入和本地排放的共同影响,其中本地源占比约为49.5%,外来源占比约为50.5%,PM_(2.5)二次来源中二次硝酸盐占比最高,为32.6%,一次源中机动车源与扬尘源占比相对较高,分别为19.6%、13.4%,表明冬季机动车源与扬尘源是永州市本地的管控重点。
This paper analyzes the air pollution in Yongzhou City during the winter of 2021,studies the impact of particulate matter on air quality,and analyzes the sources of air pollution in winter based on particulate matter component data and transmission model,providing scientific support for the subsequent air pollution control and prevention work in the local area.The results show that the concentration of PM_(2.5) and PM_(10) in Yongzhou City in winter is 60.6%,which is the main infl uencing parameter of air quality in winter.The air pollution in Yongzhou is affected by both external input and local emission,of which the local source accounts for about 49.5%,and the external source accounts for about 50.5%.In the secondary source of PM_(2.5),the secondary nitrate accounts for the highest proportion,which is 32.6%.In the primary source,the motor vehicle source and dust source account for a relatively high proportion,which are 19.6% and 13.4%respectively.It shows that motor vehicle source and dust source in winter are the key points of local control in Yongzhou City.
作者
李颖
杨韵波
全继平
Li Ying;Yang Yunbo;Quan Jiping(Lihe Technology(Hunan)Co.,Ltd.,Changsha 410205,China)
出处
《皮革制作与环保科技》
2024年第12期43-45,共3页
Leather Manufacture and Environmental Technology
基金
湖南省重点领域研发计划:PM_(2.5)与臭氧复合污染协同控制技术(2022SK2062)。
关键词
大气颗粒物
冬季
来源解析
atmospheric particulate matter
winter
source analysis
