引用本文:姜建彪,常青,冯媛,罗毅,李治国.石家庄市大气颗粒物中有机碳和元素碳的季节变化特征[J].环境监控与预警,2017,9(2):41-45
JIANG Jian biao, CHANG Qing,FENG Yuan,LUO Yi,LI Zhi guo.Seasonal Variation of Organic Carbon and Elemental Carbon in Atmospheric Particles in Shijiazhuang[J].Environmental Monitoring and Forewarning,2017,9(2):41-45
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石家庄市大气颗粒物中有机碳和元素碳的季节变化特征
姜建彪,常青,冯媛,罗毅,李治国
作者单位
姜建彪,常青,冯媛,罗毅,李治国 石家庄市环境监测中心河北 石家庄 050022 
摘要:
为了解石家庄市大气颗粒物中有机碳和元素碳的季节变化特征,对春、夏、秋、冬四季采集的PM<sub>10</sub>、PM<sub>2.5</sub>样品中的有机碳( OC) 和元素碳( EC) 进行了分析。结果表明,石家庄市PM<sub>10</sub>、PM<sub>2.5</sub>污染严重;PM<sub>10</sub>、PM<sub>2.5</sub>中ρ(OC)和ρ(EC)季节变化特征均为夏季<春季<秋季<冬季。冬季PM<sub>10</sub>中ρ(OC)和ρ(EC)分别为42.85和8.88μg/m<sub>3</sub>; PM<sub>2.5</sub>中ρ(OC)和ρ(EC)分别为41.2和8.59μg/m<sub>3</sub>。PM<sub>2.5</sub>中EC占比最高为3.9%,EC更容易在PM<sub>2.5</sub>中富集;在四个季节中,冬季PM<sub>10</sub>、PM<sub>2.5</sub>中ρ(OC)/ρ(EC)为最高,分别为4.83和4.80,冬季取暖用燃煤加重了OC、EC的污染。冬季PM<sub>10</sub>中二次有机碳ρ(SOC)为20.92μg/m<sub>3</sub>,PM<sub>2.5</sub>中ρ(SOC)为23.50μg/m<sub>3</sub>。
关键词:  石家庄  可吸收颗粒物  可入肺颗粒物  有机碳  元素碳  污染特征
DOI:
分类号:X83
文献标识码:B
基金项目:河北省科技计划基金资助项目(13273702D)
Seasonal Variation of Organic Carbon and Elemental Carbon in Atmospheric Particles in Shijiazhuang
JIANG Jian biao, CHANG Qing,FENG Yuan,LUO Yi,LI Zhi guo
Abstract:
In order to find out the seasonal variation characteristics of organic carbon (OC) and elemental carbon (EC) in atmospheric particulate matter in Shijiazhuang, the PM<sub>10</sub> and PM<sub>2.5</sub> samples were collected and analyzed. The results show that the PM<sub>10</sub>and PM<sub>2.5</sub> pollution is serious in Shijiazhuang. The seasonal variation characteristics of OC and EC in PM<sub>10</sub> and PM<sub>2.5</sub>bothranked in the order of summer<spring<autumn<winter. The concentration of OC and EC in PM<sub>10</sub> in winter was 42.85 and 8.88μg/m<sub>3</sub>,respectively, while in PM<sub>2.5</sub>, 41.2 and 8.59μg/m<sub>3</sub>, respectively. EC accounted for 3.9% at most in PM<sub>2.5</sub>, which showed that EC is apt to be concentrated in PM<sub>2.5</sub>. In winter, the value of ρ(OC)/ρ(EC) in PM<sub>10</sub> and PM<sub>2.5</sub>both reached to the highest,4.83 and 4.80 respectively. The fire coal for heating in winter increased pollution of OC and EC. In winter, the concentration of SOC in PM<sub>10</sub> was 20.92μg/m<sub>3</sub>, and the concentration of SOC in PM<sub>2.5</sub> was 23.50μg/m<sub>3</sub>.
Key words:  Shijiazhang  PM10  PM2.5  OC  EC  Pollution characteristic