Sources and characteristics of fine particles over the Yellow Sea and Bohai Sea using online single particle aerosol mass spectrometer

Journal of Environmental Sciences (China)
Huaiyu FuYuanhang Zhang

Abstract

Marine aerosols over the East China Seas are heavily polluted by continental sources. During the Chinese Comprehensive Ocean Experiment in November 2012, size and mass spectra of individual atmospheric particles in the size range from 0.2 to 2.0 μm were measured on board by a single particle aerosol mass spectrometer (SPAMS). The average hourly particle number (PN) was around 4560±3240 in the South Yellow Sea (SYS), 2900±3970 in the North Yellow Sea (NYS), and 1700±2220 in the Bohai Sea (BS). PN in NYS and BS varied greatly over 3 orders of magnitude, while that in SYS varied slightly. The size distributions were fitted with two log-normal modes. Accumulation mode dominated in NYS and BS, especially during episodic periods. Coarse mode particles played an important role in SYS. Particles were classified using an adaptive resonance theory based neural network algorithm (ART-2a). Six particle types were identified with secondary-containing, aged sea-salt, soot-like, biomass burning, fresh sea-salt, and lead-containing particles accounting for 32%, 21%, 18%, 16%, 4%, and 3% of total PN, respectively. Aerosols in BS were relatively enriched in particles from anthropogenic sources compared to SYS, probably due to emissions from more...Continue Reading

References

Jan 12, 2008·Environmental Science & Technology·Ryan C Sullivan, Kimberly A Prather
Mar 11, 2009·Proceedings of the National Academy of Sciences of the United States of America·Adina PaytanAnton F Post
Aug 14, 2009·Environmental Science & Technology·Shane M MurphyJohn H Seinfeld
Feb 13, 2010·Environmental Science & Technology·Andrew P AultKimberly A Prather
Aug 4, 2011·Environmental Science & Technology·Jessie M CreameanKimberly A Prather

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Citations

Sep 29, 2020·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Mei ZhengTong Zhu
Apr 29, 2019·Environmental Science and Pollution Research International·Jinqi LuoHongyi Song
Sep 5, 2018·Environmental Science and Pollution Research International·Jinpei YanLei Li
Dec 29, 2020·The Science of the Total Environment·Feng WangYinchang Feng

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