DOI: 10.1016/j.atmosres.2017.12.013
Scopus记录号: 2-s2.0-85044348147
论文题名: PMF and PSCF based source apportionment of PM2.5 at a regional background site in North China
作者: Zong Z. ; Wang X. ; Tian C. ; Chen Y. ; Fu S. ; Qu L. ; Ji L. ; Li J. ; Zhang G.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 203 起始页码: 207
结束页码: 215
语种: 英语
英文关键词: Geographical origin
; PM2.5
; PMF
; PSCF
; Source apportionment
Scopus关键词: Chemical analysis
; Chemical speciation
; Coal dust
; Coal industry
; Factorization
; Geographical regions
; Particles (particulate matter)
; Particulate emissions
; Ships
; Aerodynamic diameters
; Atmospheric particles
; Geographical origins
; PM2.5
; Positive Matrix Factorization
; Potential source contribution function
; PSCF
; Source apportionment
; Coal combustion
英文摘要: To apportion regional PM2.5 (atmospheric particles with aerodynamic diameter < 2.5 μm) source types and their geographic pattern in North China, 120 daily PM2.5 samples on Beihuangcheng Island (BH, a regional background site in North China) were collected from August 20th, 2014 to September 15th, 2015 showing one-year period. After the chemical analyses on carbonaceous species, water-soluble ions and inorganic elements, various approaches, such as Mann-Kendall test, chemical mass closure, ISORROPIA II model, Positive Matrix Factorization (PMF) linked with Potential Source Contribution Function (PSCF), were used to explore the PM2.5 speciation, sources, and source regions. Consequently, distinct seasonal variations of PM2.5 and its main species were found and could be explained by varying emission source characteristics. Based on PMF model, seven source factors for PM2.5 were identified, which were coal combustion + biomass burning, vehicle emission, mineral dust, ship emission, sea salt, industry source, refined chrome industry with the contribution of 48.21%, 30.33%, 7.24%, 6.63%, 3.51%, 3.2%, and 0.88%, respectively. In addition, PSCF analysis using the daily contribution of each factor from PMF result suggested that Shandong peninsula and Hebei province were identified as the high potential region for coal combustion + biomass burning; Beijing-Tianjin-Hebei (BTH) region was the main source region for industry source; Bohai Sea and East China Sea were found to be of high source potential for ship emission; Geographical region located northwest of BH Island was possessed of high probability for sea salt; Mineral dust presumably came from the region of Mongolia; Refined chrome industry mostly came from Liaoning, Jilin province; The vehicle emission was primarily of BTH region origin, centring on metropolises, such as Beijing and Tianjin. These results provided precious implications for PM2.5 control strategies in North China. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108952
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Key Laboratory of Cities’ Mitigation and Adaptation to Climate Change in Shanghai (CMA), College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China; School of Environmental and Civil Engineering, Jiangnan University, Wuxi, Jiangsu Province 214122, China; Yantai Oceanic Environmental Monitoring Central Station, SOA, Yantai, 264006, China
Recommended Citation:
Zong Z.,Wang X.,Tian C.,et al. PMF and PSCF based source apportionment of PM2.5 at a regional background site in North China[J]. Atmospheric Research,2018-01-01,203