| Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime | |
| Chen, Yang1,2; Yang, Fumo1,3; Mi, Tian1; Cao, Junji2; Shi, Guangming1; Huang, Rujin2,4; Wang, Huanbo1; Chen, Jun5; Lou, Shengrong6; Wang, Qiyuan2 | |
| 2017-05-01 | |
| 发表期刊 | ATMOSPHERIC RESEARCH
 |
| 卷号 | 187期号:2017页码:84-94 |
| 文章类型 | Article |
| 摘要 | Urban particles were investigated using a single particle aerosol mass spectrometer (SPAMS) in Chongqing during the summertime (from 07/05/2014 to 08/06/2014). Chemical composition, mixing state, and atmospheric behavior of urban particles were studied. The major particle types include ECOC (Elemental-Carbon-Organic-Carbon 20.6%), OC (20.1%), KSec (K-Secondary) (13.3%), BB (Biomass burning, 11.9%), NaK (sodium-potassium-rich, 73%), Al-rich (4.0%), Fe-rich (3.2%), Ca-rich (1.4%), Ca-EC, (1.6%), and NaKPb (0.5%). EC, ECOC, OC, and Ca-EC were prevalent in the condensation mode (<0.7 pm), while KSec, EC, NaK were significant in both the droplet mode (0.7-1.1 mu m) and coarse mode. Increases in aged groups such as EC, KSec, and NaK were observed in the afternoon. Case studies suggested that wet scavenging (rain) rates of different single particle types followed an order of NaKPb > Fe-rich > EC > Ca-EC > Ca-rich > KSec > OC > NaK > ECOC > Al-rich > BB. Increased number fraction of EC and KSec were correlated with the increase of odd oxygen (O-x = O-3 + NO2). EC, OC, and ECOC were enriched at higher relative humidity. The findings of this study on the mixing state, temporal variation, processing, and evolution of single particles provide new insight into the atmospheric behavior and impacts of urban particles. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词 | Mixing State Atmospheric Process Single Particle Chongqing |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.atmosres.2016.12.005 |
| 关键词[WOS] | SECONDARY ORGANIC AEROSOL ; BIOMASS BURNING AEROSOLS ; ASIAN MINERAL DUST ; REAL-TIME ANALYSIS ; MASS-SPECTROMETRY ; MIXING STATE ; CHEMICAL-CHARACTERIZATION ; HAZE EVENTS ; ATMOSPHERIC PARTICLES ; SOUTHERN CALIFORNIA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000393635300007 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5531 |
| 专题 | 粉尘与环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 4.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 5.Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China 6.Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yang,Yang, Fumo,Mi, Tian,et al. Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime[J]. ATMOSPHERIC RESEARCH,2017,187(2017):84-94. |
| APA | Chen, Yang.,Yang, Fumo.,Mi, Tian.,Cao, Junji.,Shi, Guangming.,...&Wang, Qiyuan.(2017).Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime.ATMOSPHERIC RESEARCH,187(2017),84-94. |
| MLA | Chen, Yang,et al."Characterizing the composition and evolution of and urban particles in Chongqing (China) during summertime".ATMOSPHERIC RESEARCH 187.2017(2017):84-94. |
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