Characterization of parent and oxygenated-polycyclic aromatic hydrocarbons (PAHs) in Xi'an, China during heating period: An investigation of spatial distribution and transformation
文献类型：期刊论文
| 作者 | Huang, Rujin3,5,6; Ho, Steven Sai Hang2,5,6; Wang, Jingzhi5,6,7; Cao, Junji1,5,6; Zhao, Shuyu5,6; Liu, Suixin5,6; Gao, Meiling4; Wang, Gehui5,6; Shen, Zhenxing1; Han, Yongming5,6 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 159期号:2016页码:367-377 |
| 关键词 | Pm2.5 Pahs Opahs Transformation Heating Period |
| DOI | 10.1016/j.chemosphere.2016.06.033 |
| 文献子类 | Article |
| 英文摘要 | Polycyclic aromatic hydrocarbons (PAHs) and its oxygenated derivatives (OPAHs) are toxins in PM2.5. Little information has been known for their transformation in the ambient airs. In this study, PM2.5 samples were collected at 19 sampling sites in Xi'an, China during the heating period, which is classified into: urban residential, university, commercial area, suburban region, and industry. Organic compounds including PAHs, OPAHs, hopanes and cholestanes were quantified. The average of total quantified PAHs and OPAHs concentrations were 196.5 ng/m(3) and 29A ng/m(3), respectively, which were consistent with other northern cities in China. Statistical analyses showed that there were significant differences on the distributions of PAHs between urban and suburban regions. The industry also had distinguishable profiles compared with urban residential and commercial area for OPAHs. The greater diversity of OPAHs than PAHs might be due to different primary emission sources and transformation and degradation pathways. The ratios of OPAHs to the corresponding parent PAHs, including 9-fluorenone/fluorene, anthraquinone/anthracene, benz[alpha]anthracene-7,12-dione/benzo[alpha]anthracene were 6.2, 12.7, and 1.4, respectively, which were much higher than those for the fresh emissions from coal combustion and biomass burning. These prove the importance of secondary formation and transformation of OPAHs in the ambient airs. Biomarkers such as retene, cyclopenta[CD]pyrene and alpha alpha-homohopane were characterized for the source apportionment. With Positive Matrix Factorization (PMF) model analysis, biomass burning was recognized as the most dominant pollution sources for PAHs during the heading period, which accounted for a contribution of 37.1%. Vehicle emission (22.8%) and coal combustion (22.6%) were also contributors in Xi'an. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS关键词 | POSITIVE MATRIX FACTORIZATION ; GAS CHROMATOGRAPHY/MASS SPECTROMETRY ; ATMOSPHERIC PARTICULATE MATTER ; NONPOLAR ORGANIC-COMPOUNDS ; PORT THERMAL-DESORPTION ; SOURCE APPORTIONMENT ; AMBIENT AIR ; N-ALKANES ; VERTICAL-DISTRIBUTION ; SEASONAL-VARIATIONS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000380417800045 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5668]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 作者单位 | 1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 2.Desert Res Inst, Div Atmospher Sci, Reno, NV USA 3.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 4.Univ Calif Berkeley, Sch Publ Hlth, Environm Hlth Sci Div, 50 Univ Hall 7360, Berkeley, CA 94720 USA 5.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian, Peoples R China 7.Shaanxi Normal Univ, Coll Tourism & Environm, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Rujin,Ho, Steven Sai Hang,Wang, Jingzhi,et al. Characterization of parent and oxygenated-polycyclic aromatic hydrocarbons (PAHs) in Xi'an, China during heating period: An investigation of spatial distribution and transformation[J]. CHEMOSPHERE,2016,159(2016):367-377. |
| APA | Huang, Rujin.,Ho, Steven Sai Hang.,Wang, Jingzhi.,Cao, Junji.,Zhao, Shuyu.,...&Han, Yongming.(2016).Characterization of parent and oxygenated-polycyclic aromatic hydrocarbons (PAHs) in Xi'an, China during heating period: An investigation of spatial distribution and transformation.CHEMOSPHERE,159(2016),367-377. |
| MLA | Huang, Rujin,et al."Characterization of parent and oxygenated-polycyclic aromatic hydrocarbons (PAHs) in Xi'an, China during heating period: An investigation of spatial distribution and transformation".CHEMOSPHERE 159.2016(2016):367-377. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。