摘要
为研究石家庄市大气颗粒物的污染特征及其来源,于2013年2月6—19日春节期间在石家庄市采集大气颗粒物TSP、PM10、PM2.5样品,对其有机碳、元素碳进行分析测定。结果表明,石家庄TSP、PM10、PM2.5日平均质量浓度分别为389、330、245μg/m3,颗粒物污染严重;碳组分在颗粒物中占有较大比重,且随着粒径的减少,碳组分比重逐渐增加;存在不严重的次生有机碳污染;OC与EC的相关系数较高,说明两者有较为相似的污染源,主要为燃煤、机动车排放源。各种气象条件对PM2.5、OC、EC浓度和OC/EC的变化都有不同程度的影响。
For the study of atmospheric particulate matter and sources of pollution in Shijiazhuang city, TSP, PM10, PM2.5 was sampled in February 6-19 in 2013 during the Spring Festival in Shijiazhuang City, organic carbon and elemental carbon were measured. The results show that TSP, PM10 and PM2.5 daily average concentrations were 389, 330, 245 μg/m3 , and the air was heavy polluted by particulate matter; carbon components in the particles account for a large proportion, and with the decrease in particle size , the proportion of carbon components increasing; secondary organic carbon pollution is not serious; Correlation coefficient of OC and EC has a high value, indicating that there arc similar sources, mainly coal and motor vehicle emissions. A variety of meteorological conditions on PM25, OC, EC concentrations and OC/EC ratio of the change have varying degrees of impact.
出处
《中国环境监测》
CAS
CSCD
北大核心
2014年第6期77-82,共6页
Environmental Monitoring in China
基金
河北省科技计划项目(13273702D)
关键词
大气颗粒物
TSP
PM10
PM2.5
元素碳
有机碳
二次有机碳
atmospheric particulate matter
TSP
PM10
PM 2.5
elemental carbon
organic carbon
secondary organic carbon
