摘要
基于朔州市颗粒物组分和常规空气污染物数据,开展烟花爆竹燃放对PM_(2.5)及其组分影响分析。结果表明:2022年“除夕至初二”观测时间内,烟花爆竹燃放造成污染物浓度快速上升,对PM_(2.5)贡献最大,贡献率59.36%,贡献量88μg/m^(3)。集中燃放期,水溶性离子除Ca^(2+)外,其余8种离子(K^(+)、SO_(4)^(2-)、Cl^(-)、NH_(4)^(+)、NO_(3)^(-)、Mg^(2+)、Na^(+)、F^(-))均出现增长,其中Cl^(-)、K^(+)浓度变化幅度最大(7.9倍),Mg^(2+)次之(3.6倍)。集中燃放期SOR和NOR均有一定程度升高,SO2转化程度更高。集中燃放期Cl^(-)和K^(+)相关系数最高(0.973),非集中燃放期SO_(4)^(2-)和NH_(4)^(+)相关性较好。
Based on the data of particulate matter components and conventional air pollutants in Shuozhou City,an analysis was conducted on the impact of fireworks and firecrackers on PM_(2.5)and its components.The results showed that during the observation period from New Year's Eve to the second day of the lunar new year in 2022,the discharge of fireworks and firecrackers caused a rapid increase in pollutant concentrations,with the largest contribution to PM_(2.5),accounting for 59.36%and contributing 88μg/m^(3).During the concentrated combustion period,except for Ca^(2+),water-soluble ions(K^(+),SO_(4)^(2-),Cl^(-),NH_(4)^(+),NO_(3)^(-),Mg^(2+),Na^(+),F^(-))all showed an increase.Among them,the concentration of Cl^(-)and K^(+)changed the most(7.9 times),followed by Mg^(2+)(3.6 times).During the concentrated combustion period,both SOR and NOR showed a certain degree of increase,with a higher degree of SO2 conversion.The correlation coefficient between Cl^(-)and K^(+)is highest during the concentrated combustion period(0.973),while the correlation between SO_(4)_(2-)and NH_(4)^(+)is better during the non concentrated combustion period.
作者
马晋
贾俊
王小琴
Ma Jin;Jia Jun;Wang Xiaoqin(Shanxi Ecological Environment Monitoring and Emergency Support Center(Shanxi Institute of Ecological Environment Science),Taiyuan Shanxi 030027,China;Shanxi Shuozhou Ecological Environment Monitoring Center,Shuozhou Shanxi 036002,China;Taiyuan Haina Chenke Instrument Co.,Ltd.,Taiyuan Shanxi 030000,China)
出处
《山西化工》
CAS
2024年第9期277-278,281,共3页
Shanxi Chemical Industry
作者简介
马晋,女,1985年出生,毕业于华东师范大学,硕士学位,工程师,从事环境空气质量自动监测及分析工作。
