Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing
文献类型：期刊论文
| 作者 | Huang, Ru-Jin4,8,9; He, Yao4,8; Duan, Jing4,8; Li, Yongjie10; Chen, Qi11; Zheng, Yan11; Chen, Yang1 ; Hu, Weiwei2,5; Lin, Chunshui4,8; Ni, Haiyan4,8
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| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| 出版日期 | 2020-07-31 |
| 卷号 | 20期号:14页码:9101-9114 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-20-9101-2020 |
| 通讯作者 | Huang, Ru-Jin(rujin.huang@ieecas.cn) |
| 英文摘要 | Although there are many studies of particulate matter (PM) pollution in Beijing, the sources and processes of secondary PM species during haze periods remain unclear. Limited studies have investigated the PM formation in highly polluted environments under low- and high-relative-humidity (RH) conditions. Herein, we present a systematic comparison of species in submicron particles (PM1) in wintertime Beijing (29 December 2014 to 28 February 2015) for clean periods and pollution periods under low- and high-RH conditions. PM1 species were measured with an aerosol chemical species monitor (ACSM) and an Aethalometer. Sources and processes for organic aerosol (OA) were resolved by positive matrix factorization (PMF) with a multilinear engine 2 (ME-2). The comparisons for clean, low-RH pollution and high-RH pollution periods are made from three different aspects, namely (a) mass concentration, (b) mass fraction and (c) growth rate in diurnal profiles. OA is the dominant component of PM1, with an average mass concentration of 56.7 mu g m(-3) (46 %) during high-RH pollution and 67.7 mu g m(-3) (54 %) during low-RH pollution periods. Sulfate had higher concentration and mass fraction during high-RH pollution periods, while nitrate had higher concentration and mass fraction during low-RH pollution periods. The diurnal variations of nitrate and oxygenated organic aerosol (OOA) showed a daytime increase in their concentrations during all three types of periods. Nitrate had similar growth rates during low-RH (0.40 mu g m(-3) h(-1)) and high-RH (0.55 mu g m(-3) h(-1)) pollution periods. OOA had a higher growth rate during low- RH pollution periods (1.0 mu g m(-3) h(-1)) than during high-RH pollution periods (0.40 mu g m(-3) h(-1)). In contrast, sulfate had a decreasing trend during low-RH pollution periods, while it increased significantly with a growth rate of 0.81 mu g m(-3) h(-1) during high-RH pollution periods. These distinctions in mass concentrations, mass fractions and daytime growth rates may be explained by the difference in the formation processes affected by meteorological conditions. In particular, photochemical oxidation and aqueous-phase processes may both produce sulfate and nitrate. The relative importance of the two pathways, however, differs under different meteorological conditions. Additional OOA formation under high-RH (> 70 %) conditions suggests aqueous-related formation pathways. This study provides a general picture of the haze formation in Beijing under different meteorological conditions. |
| 资助项目 | National Natural Science Foundation of China[41925015] ; National Natural Science Foundation of China[91644219] ; National Natural Science Foundation of China[41877408] ; National Natural Science Foundation of China[41675120] ; National Key Research and Development Program of China[2017YFC0212701] ; Chinese Academy of Sciences[ZDBS-LY-DQC001] ; Cross Innovative Team fund from the State Key Laboratory of Loess and Quaternary Geology[SKLLQGTD1801] ; Irish Environmental Protection Agency and Science Foundation Ireland (OM-MaREI) |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| WOS记录号 | WOS:000558639500002 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11632]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Huang, Ru-Jin |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China 4.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Ctr Excellence Quaternary Sci & Global Change, Inst Earth & Environm, Xian 710061, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China 6.Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, Duesbergweg 10-14, D-55128 Mainz, Germany 7.Natl Univ Ireland Galway, Ryan Inst, Sch Phys & Ctr Climate & Air Pollut Studies, Univ Rd, Galway H91C F50, Ireland 8.Chinese Acad Sci, Inst Earth & Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 9.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China 10.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Taipa, Macao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Ru-Jin,He, Yao,Duan, Jing,et al. Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(14):9101-9114. |
| APA | Huang, Ru-Jin.,He, Yao.,Duan, Jing.,Li, Yongjie.,Chen, Qi.,...&O'Dowd, Colin D..(2020).Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(14),9101-9114. |
| MLA | Huang, Ru-Jin,et al."Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.14(2020):9101-9114. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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