| Effects of photochemical oxidation on the mixing state and light absorption of black carbon in the urban atmosphere of China | |
| Wang, Qiyuan1,2; Huang, Rujin1,2,3; Zhao, Zhuzi1,2; Cao, Junji1,2,4; Ni, Haiyan1; Tie, Xuexi1,2; Zhu, Chongshu1,2; Shen, Zhenxing5; Wang, Meng1; Dai, Wenting1,2; Han, Yongming1,2,4; Zhang, Ningning1,2; Prevot, Andre S. H.1,6 | |
| 2017-04-01 | |
| 发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 卷号 | 12期号:4 |
| 文章类型 | Article |
| 摘要 | The relationship between the refractory black carbon (rBC) aerosol mixing state and the atmospheric oxidation capacity was investigated to assess the possible influence of oxidants on the particles ' light absorption effects at two large cities in China. The number fraction of thicklycoated rBC particles (F-rBC) was positively correlated with a measure of the oxidant concentrations (OX = O-3 + NO2), indicating an enhancement of coated rBC particles under more oxidizing conditions. The slope of a linear regression of FrBC versus OX was 0.58% ppb(-1) for Beijing and 0.84% ppb(-1) for Xi ' an, and these relationships provide some insights into the evolution of rBC mixing state in relation to atmospheric oxidation processes. The mass absorption cross-section of rBC (MAC(rBC)) increased with OX during the daytime at Xi ' an, at a rate of 0.26 m(2) g(-1) ppb(-1), suggesting that more oxidizing conditions lead to internal mixing that enhances the lightabsorbing capacity of rBC particles. Understanding the dependence of the increasing rates of FrBC and MACrBC as a function of OX may lead to improvements of climate models that deal with the warming effects, but more studies in different cities and seasons are needed to gauge the broader implications of these findings. |
| 关键词 | Black Carbon Mixing State Mass Absorption Cross-section Photochemical Oxidation Light Absorption |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| DOI | 10.1088/1748-9326/aa64ea |
| 关键词[WOS] | AEROSOL CHARACTERIZATION ; SIZE DISTRIBUTION ; SURFACE OZONE ; BROWN CARBON ; PARTICLES ; SOOT ; XIAN ; UK ; LONDON ; WINTER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000398370600001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5493 |
| 专题 | 粉尘与环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Xiamen Huaxia Univ, Ctr Atmospher & Marine Sci, Xiamen 361024, Peoples R China 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 5.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 6.PSI, Lab Atmospher Chem, CH-5232 Villigen, Switzerland |
| 推荐引用方式 GB/T 7714 | Wang, Qiyuan,Huang, Rujin,Zhao, Zhuzi,et al. Effects of photochemical oxidation on the mixing state and light absorption of black carbon in the urban atmosphere of China[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(4). |
| APA | Wang, Qiyuan.,Huang, Rujin.,Zhao, Zhuzi.,Cao, Junji.,Ni, Haiyan.,...&Prevot, Andre S. H..(2017).Effects of photochemical oxidation on the mixing state and light absorption of black carbon in the urban atmosphere of China.ENVIRONMENTAL RESEARCH LETTERS,12(4). |
| MLA | Wang, Qiyuan,et al."Effects of photochemical oxidation on the mixing state and light absorption of black carbon in the urban atmosphere of China".ENVIRONMENTAL RESEARCH LETTERS 12.4(2017). |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Effects of photochem（1389KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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