Pollution Characteristics and Sources of Fine Particles During a Heavy Haze Episode in Winter: A Case Study of Weinan City

被引：3
作者：
Zhu, Y. [1 ]
Cao, N. [1 ]
Wei, Z. [1 ]
Zhang, Y. J. [1 ]
机构：
[1] Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian, Shaanxi, Peoples R China
来源：
2019 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL AND ENERGY ENGINEERING (IC3E 2019) | 2019年 / 281卷
关键词：
AEROSOL MASS-SPECTROMETRY; MIXING STATE; URBAN GUANGZHOU; SHANGHAI; EVENTS; CHINA; AREA;
D O I：
10.1088/1755-1315/281/1/012012
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Single Particle Aerosol Mass Spectrometry (SPAMS) is used to investigated a heavy haze process in Weinan,2017. Firstly, the fine particles (PM2.5) using ART-2a was analysed and clustered into 8 classes: organic carbon (OC), organics and elemental carbon combined particles (ECOC), elemental carbon (EC), heavy metal (HM), high molecular organic carbon (HOC), K-rich, levoglucosan (Lev) and dust. Secondly, positive matrix factorization (PMF) was used to identify the sources of PM2.5. Results from PMF showed that the main six sources of PM2.5 were coal-fired (38.48%), secondary (19.19%), biomass burning (15.04%), industry (9.28%), traffic ( 5.02%), and dust (5.00%). And it is obvious that the major cause of the atmospheric heavy haze is an unfavorable meteorological conditions such as high humidity and low wind speed, as well as coal-fired pollution and secondary pollution caused by heating and industrial production.
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页数：6
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