Impact of particle number and mass size distributions of major chemical components on particle mass scattering efficiency in urban Guangzhou in southern China
文献类型：期刊论文
| 作者 | Tao, Jun3; Zhang, Zhisheng3; Wu, Yunfei2; Zhang, Leiming1; Wu, Zhijun4; Cheng, Peng5; Li, Mei5; Chen, Laiguo3; Zhang, Renjian2; Cao, Junji6 |
| 刊名 | ATMOSPHERIC CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2019-07-04 |
| 卷号 | 19期号:13页码:8471-8490 |
| ISSN号 | 1680-7316 |
| DOI | 10.5194/acp-19-8471-2019 |
| 通讯作者 | Tao, Jun(taojun@scies.org) ; Zhang, Leiming(leiming.zhang@canada.ca) |
| 英文摘要 | To grasp the key factors affecting particle mass scattering efficiency (MSE), particle mass and number size distribution, PM2.5 and PM10 and their major chemical compositions, and the particle scattering coefficient (b(sp)) under dry conditions were measured at an urban site in Guangzhou, southern China, during 2015-2016. On an annual average, 10 +/- 2 %, 48 +/- 7 % and 42 +/- 8 % of PM10 mass were in the condensation, droplet and coarse modes, respectively, with mass mean aerodynamic diameters (MMADs) of 0.78 +/- 0.07 in the droplet mode and 4.57 +/- 0.42 pm in the coarse mode. The identified chemical species mass concentrations can explain 79 +/- 3 %, 82 +/- 6 % and 57 +/- 6 % of the total particle mass in the condensation, droplet and coarse mode, respectively. Organic matter (OM) and elemental carbon (EC) in the condensation mode, OM, (NH4)(2)SO4, NH4NO3, and crustal element oxides in the droplet mode, and crustal element oxides, OM, and CaSO4 in the coarse mode, were the dominant chemical species in their respective modes. The measured b(sp) can be reconstructed to the level of 91 +/- 10 % using Mie theory with input of the estimated chemically resolved number concentrations of NaCl, NaNO3, Na2SO4, NH4NO3, (NH4)(2)SO4, K2SO4, CaSO4, Ca(NO3)(2), OM, EC, crustal element oxides and unidentified fraction. MSEs of particle and individual chemical species were underestimated by less than 13 % in any season based on the estimated b(sp) and chemical species mass concentrations. Seasonal average MSEs varied in the range of 3.5 +/- 0.1 to 3.9 +/- 0.2 m(2) g(-1) for fine particles (aerodynamic diameter smaller than 2.1 mu m), which was mainly caused by seasonal variations in the mass fractions and MSEs of the dominant chemical species (OM, NH4NO3, (NH4)(2)SO4) in the droplet mode. MSEs of the dominant chemical species were determined by their lognormal size-distribution parameters, including MMADs and standard deviation (sigma) in the droplet mode. |
| WOS关键词 | PEARL RIVER-DELTA ; SECONDARY ORGANIC AEROSOL ; LIGHT EXTINCTION COEFFICIENTS ; PM2.5 SOURCE PROFILES ; SOURCE APPORTIONMENT ; OPTICAL-PROPERTIES ; ELEMENTAL CARBON ; PARTICULATE MATTER ; FINE PARTICLES ; INORGANIC-IONS |
| 资助项目 | National Natural Science Foundation of China[41475119] ; National Natural Science Foundation of China[41875160] ; National Natural Science Foundation of China[41603119] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000473813000001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/13736]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Tao, Jun; Zhang, Leiming |
| 作者单位 | 1.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON, Canada 2.Chinese Acad Sci, Inst Atmospher Phys, RCE TEA, Beijing, Peoples R China 3.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China 4.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China 5.Jinan Univ, Inst Mass Spectrometer & Atmos Environ, Guangzhou, Guangdong, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Jun,Zhang, Zhisheng,Wu, Yunfei,et al. Impact of particle number and mass size distributions of major chemical components on particle mass scattering efficiency in urban Guangzhou in southern China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(13):8471-8490. |
| APA | Tao, Jun.,Zhang, Zhisheng.,Wu, Yunfei.,Zhang, Leiming.,Wu, Zhijun.,...&Cao, Junji.(2019).Impact of particle number and mass size distributions of major chemical components on particle mass scattering efficiency in urban Guangzhou in southern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(13),8471-8490. |
| MLA | Tao, Jun,et al."Impact of particle number and mass size distributions of major chemical components on particle mass scattering efficiency in urban Guangzhou in southern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.13(2019):8471-8490. |
入库方式： OAI收割
来源：地球环境研究所
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