摘要
为研究合肥市大气细颗粒物(PM_(2.5))的化学组分特征,本文于2020年3月至2021年2月在合肥市城区采集环境空气中PM_(2.5)样品,分析PM_(2.5)中的碳组分、水溶性离子和无机元素信息。结果表明,采样期间,合肥市PM_(2.5)平均浓度为(46.0±21.2)μg/m^(3),浓度最高的3个组分为有机物(12.63μg/m^(3))、硝酸盐(10.53μg/m^(3))和硫酸盐(5.63μg/m^(3))。硫酸盐和元素碳在春季浓度较高,其他组分在冬季浓度最高。
In order to study the chemical composition characteristics of fine particulate matter(PM_(2.5))in the atmosphere of Hefei City,this paper collected ambient air PM_(2.5)samples in the urban area of Hefei City from March 2020 to February 2021,and analyzed the information of carbon composition,water-soluble ions,and inorganic elements in PM_(2.5).The results showed that during the sampling period,the average concentration of PM_(2.5)in Hefei City was(46.0±21.2)μg/m^(3),the three components with the highest concentration are organic compounds(12.63μg/m^(3)),nitrate(10.53μg/m^(3))and sulfate(5.63μg/m^(3)).Sulfate and elemental carbon had higher concentrations in spring,while other components had the highest concentrations in winter.
作者
魏桢
WEI Zhen(Anhui Ecological Environment Monitoring Center,Hefei 230071,China)
出处
《中国资源综合利用》
2023年第11期118-120,共3页
China Resources Comprehensive Utilization
