Comparison and implications of PM2.5 carbon fractionsin different environments
文献类型：期刊论文
| 作者 | Cao,JJ(Cao,Junji)[1]; Zhao,ZZ(Zhao,Zhuzi)[1]; Liu,SX(Liu,Suixin)[1]; Han,YM(Han,Yongming)[1]; Shen,ZX(Shen,Zhenxing)[3]; Tsai,CJ(Tsai,Chuen-Jinn)[2]; Zhu,CS(Zhu,Chongshu)[1] |
| 刊名 | Science of the Total Environment
 |
| 出版日期 | 2014 |
| 卷号 | 466-467页码:203-209 |
| 关键词 | Pm2.5 Elemental Carbon Organic Carbon Oc/ec Char/soot |
| DOI | 10.1016/j.scitotenv.2013.07.029 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The concentrations of PM2.5 carbon fractions in rural, urban, tunnel and remote environments were measured using the IMPROVE thermal optical reflectance (TOR) method. The highest OC1 and EC1 concentrations were found for tunnel samples, while the highest OC2, OC3, and OC4 concentrations were observed for urban winter samples, respectively. The lowest levels of most carbon fractions were found for remote samples. The percentage contributions of carbon fractions to total carbon (TC) were characterized by one peak (at rural and remote sites) and two peaks (at urban and tunnel sites) with different carbon fractions, respectively. The abundance of char in tunnel and urban environments was observed, which might partly be due to traffic-related tire-wear. Various percentages of optically scattering OC and absorbing EC fractions to TC were found in the four different environments. In addition, the contribution of heating carbon fractions (char and soot) indicated various warming effects per unit mass of TC. The ratios of OC/EC and char/soot at the sites were shown to be source indicators. The investigation of carbon fractions at different sites may provide some information for improving model parameters in estimating their radiative effects. |
| 语种 | 英语 |
| 源URL | [http://ir.ieecas.cn/handle/361006/9858]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Cao,JJ(Cao,Junji)[1]; Zhu,CS(Zhu,Chongshu)[1] |
| 作者单位 | 1.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China; 2.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China 3.Key Lab of Aerosol Science & Technology, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; 4.Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan; |
| 推荐引用方式 GB/T 7714 | Cao,JJ,Zhao,ZZ,Liu,SX,et al. Comparison and implications of PM2.5 carbon fractionsin different environments[J]. Science of the Total Environment,2014,466-467:203-209. |
| APA | Cao,JJ.,Zhao,ZZ.,Liu,SX.,Han,YM.,Shen,ZX.,...&Zhu,CS.(2014).Comparison and implications of PM2.5 carbon fractionsin different environments.Science of the Total Environment,466-467,203-209. |
| MLA | Cao,JJ,et al."Comparison and implications of PM2.5 carbon fractionsin different environments".Science of the Total Environment 466-467(2014):203-209. |
入库方式： OAI收割
来源：地球环境研究所
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