永州市冬季大气颗粒物污染特征及来源解析
Characteristics and Source Analysis of Atmospheric Particulate Pollution in Winter in Yongzhou City
李颖 1杨韵波 1全继平1
作者信息
- 1. 力合科技(湖南)股份有限公司,湖南 长沙 410205
- 折叠
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PM2.5 和PM10 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%,PM2.5 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.
Abstract
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 PM2.5 and PM10 in Yongzhou City in winter is 60.6%,which is the main influencing 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 PM2.5,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.
关键词
大气颗粒物/冬季/来源解析Key words
atmospheric particulate matter/winter/source analysis引用本文复制引用
基金项目
湖南省重点领域研发计划(2022SK2062)
出版年
2024
NETL
NSTL
万方数据