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Environ Pollut

Title:		Long Island enhanced aerosol event during 2018 LISTOS: Association with heatwave and marine influences
Author(s):		Zhang J; Mak J; Wei Z; Cao C; Ninneman M; Marto J; Schwab JJ;
Address:		"Atmospheric Sciences Research Center, University at Albany, SUNY, Albany, NY, USA. Electronic address: jzhang35@albany.edu. School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, USA. Atmospheric Sciences Research Center, University at Albany, SUNY, Albany, NY, USA"
Journal Title:		Environ Pollut
Year:		2021
Volume:		20201214
Issue:
Page Number:		116299 -
DOI:		10.1016/j.envpol.2020.116299
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"The co-occurrence of enhancement in aerosol concentration, temperatures, and ozone mixing ratio was observed between June 29 and July 4, 2018 (enhanced period, EP) on Long Island (LI) and the greater NYC metropolitan area during part of the 2018 Long Island Sound Tropospheric Ozone Study (LISTOS). Two aerosol formation pathways were identified during the EP, the first being the condensation of semi- and intermediate volatility oxidation products of anthropogenic volatile organic compounds (AVOCs) under stagnant synoptic flow conditions, high temperatures and afternoon sea-breeze circulation. While this first pathway was prevalent, the most abundant organic aerosol factor was less oxidized oxygenated organic aerosol or LO-OOA. The second formation pathway occurred during a period of more persistent (synoptic) on-shore flow transporting more aged aerosol which consisted of an internal mixture of more oxidized oxygenated organic aerosol (MO-OOA), methanesulfonic acid (MSA) and sulfate. It was estimated that 35% of the sulfate observed during the mature period (an average of about 1.2 mug m(-3)) originated from oceanic dimethyl sulfide (DMS) emissions. These two formation pathways helped elucidate the sources of fine particle pollution, highlighted the interaction between human emissions and natural DMS emission, and will help our understanding of pollution affecting other urban areas adjacent to large bodies of water during hot and stagnant periods"
Keywords:		Aerosols/analysis *Air Pollutants/analysis Environmental Monitoring Humans *Ozone/analysis Particulate Matter/analysis Dms Enhanced aerosol High temperatures Internally-mixed marine aerosol Voc;
Notes:		"MedlineZhang, Jie Mak, John Wei, Ziran Cao, Cong Ninneman, Matthew Marto, Joseph Schwab, James J eng England 2020/12/29 Environ Pollut. 2021 Feb 1; 270:116299. doi: 10.1016/j.envpol.2020.116299. Epub 2020 Dec 14"