| Literature DB >> 29934779 |
Keying Wu1, Ming Duan2, Hefan Liu3, Zihang Zhou3, Ye Deng3, Danlin Song3, Qinwen Tan3.
Abstract
To examine the impacts of fireworks, size-resolved PM samples were collected using a single-particle aerosol mass spectrometer before, during and after the Spring Festival in a megacity in Chengdu, China. Chemical composition and atmospheric behavior of urban particles were studied. Ten major single particle types were resolved with ART-2a algorithm including elemental and organic carbon (ECOC), EC, OC, levoglucosan (LEV), high molecular weight organic molecules (HOM), hard metal (HM), K rich, Na rich and SiO3-. The average OC/EC ratios decreased in the order AY (4.7) > overall (4.1) > NY (4.0) > BY period (3.6), indicating that many organic pollutants had been generated after the Spring Festival. The concentrations of many species exhibited an increasing trend during the firework period, and the SOR and NOR showed a strong increase in NY period. SOR and NOR had a slight positive relationship with fireworks activity but no obvious relationship with temperature.Entities:
Keywords: Air pollution; Fireworks; PM2.5; SPMAS
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Year: 2018 PMID： 29934779 DOI： 10.1007/s10653-018-0141-9
Source DB: PubMed Journal: Environ Geochem Health ISSN： 0269-4042 Impact factor: 4.609