Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-14501-2017 |
Field characterization of the PM2.5 Aerosol Chemical Speciation Monitor: insights into the composition, sources, and processes of fine particles in eastern China | |
Zhang, Yunjiang1,2,3,4; Tang, Lili1,2; Croteau, Philip L.5; Favez, Olivier3; Sun, Yele6,7,8; Canagaratna, Manjula R.5; Wang, Zhuang1; Couvidat, Florian3; Albinet, Alexandre3; Zhang, Hongliang9; Sciare, Jean10; Prevot, Andre S. H.11; Jayne, John T.5; Worsnop, Douglas R.5 | |
2017-12-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:23 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; France; USA; Cyprus; Switzerland |
英文摘要 | A PM2.5-capable aerosol chemical speciation monitor (Q-ACSM) was deployed in urban Nanjing, China, for the first time to measure in situ non-refractory fine particle (NR-PM2.5) composition from 20 October to 19 November 2015, along with parallel measurements of submicron aerosol (PM1) species by a standard Q-ACSM. Our results show that the NR-PM2.5 species (organics, sulfate, nitrate, and ammonium) measured by the PM2.5-Q-ACSM are highly correlated (r(2) > 0.9) with those measured by a Sunset Lab OC / EC analyzer and a Monitor for AeRosols and GAses (MARGA). The comparisons between the two Q-ACSMs illustrated similar temporal variations in all NR species between PM1 and PM2.5, yet substantial mass fractions of aerosol species were observed in the size range of 12.5 mu m. On average, NR-PM1-2.5 contributed 53 % of the total NR-PM2.5, with sulfate and secondary organic aerosols (SOAs) being the two largest contributors (26 and 27 %, respectively). Positive matrix factorization of organic aerosol showed similar temporal variations in both primary and secondary OAs between PM1 and PM2.5, although the mass spectra were slightly different due to more thermal decomposition on the capture vaporizer of the PM2.5-Q-ACSM. We observed an enhancement of SOA under high relative humidity conditions, which is associated with simultaneous increases in aerosol pH, gas-phase species (NO2, SO2, and NH3) concentrations and aerosol water content driven by secondary inorganic aerosols. These results likely indicate an enhanced reactive uptake of SOA precursors upon aqueous particles. Therefore, reducing anthropogenic NOx, SO2, and NH3 emissions might not only reduce secondary inorganic aerosols but also the SOA burden during haze episodes in China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417198000003 |
WOS关键词 | REAL-TIME MEASUREMENTS ; YANGTZE-RIVER DELTA ; POSITIVE MATRIX FACTORIZATION ; MASS SPECTROMETERS AMS ; ORGANIC AEROSOL ; SOURCE APPORTIONMENT ; EVOLUTION PROCESSES ; PARTICULATE MATTER ; SUBMICRON AEROSOLS ; SULFATE FORMATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29477 |
专题 | 地球科学 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Nanjing, Jiangsu, Peoples R China; 2.Jiangsu Environm Monitoring Ctr, Nanjing, Jiangsu, Peoples R China; 3.Inst Natl Environm Ind & Risques, Verneuil En Halatte, France; 4.Univ Paris Saclay, Lab Sci Climat & Environm, CNRS, CEA,UVSQ, Gif Sur Yvette, France; 5.Aerodyne Res Inc, Billerica, MA USA; 6.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China; 7.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen, Peoples R China; 8.Univ Chinese Acad Sci, Beijing, Peoples R China; 9.Nanjing Handa Environm Sci & Technol Ltd, Nanjing, Jiangsu, Peoples R China; 10.Cyprus Inst, Environm Energy & Water Res Ctr, Nicosia, Cyprus; 11.Paul Scherrer Inst, Lab Atmospher Chem, Villigen, Switzerland |
推荐引用方式 GB/T 7714 | Zhang, Yunjiang,Tang, Lili,Croteau, Philip L.,et al. Field characterization of the PM2.5 Aerosol Chemical Speciation Monitor: insights into the composition, sources, and processes of fine particles in eastern China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(23). |
APA | Zhang, Yunjiang.,Tang, Lili.,Croteau, Philip L..,Favez, Olivier.,Sun, Yele.,...&Worsnop, Douglas R..(2017).Field characterization of the PM2.5 Aerosol Chemical Speciation Monitor: insights into the composition, sources, and processes of fine particles in eastern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(23). |
MLA | Zhang, Yunjiang,et al."Field characterization of the PM2.5 Aerosol Chemical Speciation Monitor: insights into the composition, sources, and processes of fine particles in eastern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.23(2017). |
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