摘要
使用宁夏大气复合污染综合观测网石嘴山组分站的自动监测数据,以小时为时间尺度对国庆假期石嘴山市PM_(2.5)组分特征进行分析。结合国庆假期石嘴山市PM_(2.5)总体情况,将国庆假期分为PM_(2.5)/PM_(10)<30%时段、PM_(2.5)<35μg/m^(3)时段和PM_(2.5)≥35μg/m^(3)时段分别讨论。结果表明,PM_(2.5)/PM_(10)<30%时段地壳元素占比为54.8%,PM_(2.5)<35μg/m^(3)时段和PM_(2.5)≥35μg/m^(3)时段化学组成以SNA和OM为主,两者之和分别为84.5%和81.9%。通过化学示踪物比值定性半定量判断PM_(2.5)中各化学组分的可能来源。
This paper uses the automatic monitoring data of the Shizuishan component station of the comprehensive observation network of atmospheric composite pollution in Ningxia to analyze the characteristics of PM_(2.5)components in Shizuishan City during the National Day holiday on a time scale of hours.Combined with the general situation of PM_(2.5)in Shizuishan City during the National Day holiday,the weather during the National Day holiday is divided into PM_(2.5)/PM_(10)<30%period,PM_(2.5)<35μg/m^(3)period and PM_(2.5)≥35μg/m^(3)period.The results show that the proportion of crustal elements is 54.8%in the period of PM_(2.5)/PM_(10)<30%,and the chemical composition in the period of PM_(2.5)<35μg/m^(3)and PM_(2.5)≥35μg/m^(3)is dominated by SNA and OM,the sum of the two were 84.5%and 81.9%,respectively.The possible source of each chemical component in PM_(2.5)was determined qualitatively semi-quantitatively by chemical tracer ratio.
作者
韩增玉
黄彬
张满
HAN Zengyu;HUANG Bin;ZHANG Man(Ningxia Enviromental Monitoring Center,Yinchuan 750011,China;Enviromental Monitoring Site of Ningxia Ningdong Energy and Chemical Industry Base,Yinchuan 754100,China;Yuxing Technology Development(Shenzhen)Co.,Ltd,Shenzhen 518000,China)
出处
《环境影响评价》
2023年第5期80-84,共5页
Environmental Impact Assessment
基金
宁夏回族自治区重点研发计划项目(2019BFG02020)。
