气候变化领域集成服务门户(CCPortal): Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer

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DOI	10.1016/j.atmosres.2018.12.021
	Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer
	Wang S.; He B.; Yuan M.; Su F.; Yin S.; Yan Q.; Jiang N.; Zhang R.; Tang X.
发表日期	2019
ISSN	0169-8095
起始页码	13
结束页码	23
卷号	219
英文摘要	To investigate the formation of haze during the cold season, continuous ambient air measurements were taken at an urban site in Zhengzhou from October 10, 2016 through December 31, 2016 using a single particle aerosol mass spectrometer. In total, 4,099,800 particles were analyzed and classified into eight major particle types: elemental carbon (EC, 36.7%), organic carbon (OC, 30.0%), ECOC (8.6%), K-rich (13.0%), levoglucosan (1.2%), metal (2.2%), NH4-K (2.1%), and dust (6.2%). By combining these measurements with correlation analysis and wind data, particle sources were determined to be vehicles, industrial emissions, coal combustion, biomass burning, secondary aerosols, agriculture, and dust. Additionally, analysis of mixing states indicated that particles underwent substantial aging and secondary OC particles were dominant OC species. Temporal profiles of meteorological parameters, mixing states, and particle types during a typical haze episode revealed that EC and OC particles were dominant components during haze formation, and a northeastern transport route (Anyang-Zhengzhou and Puyang-Xuchang) for OC particles was identified by potential source contribution function and concentration weighted trajectory analysis. Relatively higher humidity and lower temperature favored the formation of secondary inorganic aerosol. Wind direction and speed determined the transport, formation, and elimination of stagnant weather conditions. In sum, heavy haze during the cold season in Zhengzhou was observed due to extensive aerosol aging under adverse weather conditions (i.e., northeastern wind direction, wind speed <2 m s−1, temperature < 10 °C, relative humidity >60%, temperature inversion, and uniform pressure field). © 2018
英文关键词	Formation mechanisms; Heavy haze; Mixing states; Single particles; SPAMS
语种	英语
scopus关键词	Aerosols; Coal dust; Industrial emissions; Mass spectrometers; Meteorology; Mixing; Organic carbon; Plutonium compounds; Urban growth; Wind; Formation mechanism; Heavy haze; Mixing state; Single particle; SPAMS; Coal combustion; aerosol; formation mechanism; haze; mass spectrometry; meteorology; mixing; organic carbon; particulate matter; China; Henan; Zhengzhou
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162280
作者单位	Research Institute of Environmental Science, College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China; Zhengzhou Environmental Monitoring Center, Zhengzhou, 450001, China
推荐引用方式 GB/T 7714	Wang S.,He B.,Yuan M.,et al. Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer[J],2019,219.
APA	Wang S..,He B..,Yuan M..,Su F..,Yin S..,...&Tang X..(2019).Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer.Atmospheric Research,219.
MLA	Wang S.,et al."Characterization of individual particles and meteorological conditions during the cold season in Zhengzhou using a single particle aerosol mass spectrometer".Atmospheric Research 219(2019).