Influence of aerosol acidity on the formation of secondary organic aerosol from biogenic precursor hydrocarbons

Environmental Science & Technology
John H OffenbergMohammed Jaoui

Abstract

Secondary organic carbon (SOC) concentrations in steady-state aerosol were measured in a series of alpha-pinene/NOx and one series of beta-caryophyllene/NOx irradiation experiments. The acidity of the inorganic seed aerosol was varied while the hydrocarbon and NOx concentrations were held constant in each series of experiments. Measurements were made for acidity levels and SOC concentrations much closer to ambient levels than had been previously achieved for alpha-pinene, while there are no previous measurements for SOC increases due to acidity for beta-caryophyllene. The observed enhancement in SOC concentration linearly increases with the measured hydrogen ion concentration in air for each system. For the conditions of these studies, SOC increased by 0.04% per nmol H+ m(-3) for alpha-pinene under two conditions where the organic carbon concentration differed by a factor of 5. For alpha-pinene, this level of response to acidic aerosol was a factor of 8 lower than was reported by Surratt et al. for similar series of experiments for SOC from the photooxidation of isoprene/NOx mixtures. By contrast, SOC from beta-caryophyllene showed an increase of 0.22% per nmol H+ m(-3), roughly two-thirds of the response in the isoprene system...Continue Reading

References

Mar 1, 1992·The American Review of Respiratory Disease·J Schwartz, D W Dockery
Jan 1, 1994·Annual Review of Public Health·D W Dockery, C A Pope
Mar 30, 2004·Environmental Science & Technology·Michael P TolockaMurray V Johnston
Jan 27, 2005·Environmental Science & Technology·Song GaoJohn H Seinfeld
Jul 13, 2006·Environmental Science & Technology·Tadeusz E KleindienstMohammed Jaoui
Feb 22, 2007·Environmental Science & Technology·Jason D SurrattJohn H Seinfeld
May 24, 2007·Journal of the Air & Waste Management Association·John H OffenbergMohammed Jaoui
Jun 2, 2007·Environmental Science & Technology·Qi ZhangManjula Canagaratna
Sep 8, 2007·Environmental Science & Technology·Jason D SurrattJohn H Seinfeld
Jun 5, 2008·Environmental Science & Technology·Michael LewandowskiJames J Schauer
Aug 20, 2008·The Journal of Physical Chemistry. a·Jason D SurrattJohn H Seinfeld

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Citations

Apr 11, 2012·Environmental Science & Technology·Song GuoRenyi Zhang
Apr 6, 2016·Environmental Science & Technology·Pingqing FuKimitaka Kawamura
May 8, 2015·Journal of the Air & Waste Management Association·Rick SaylorJia Xing
Dec 20, 2018·Atmospheric Chemistry and Physics·Klara NestorowiczRafal Szmigielski
Jan 12, 2021·Atmospheric Chemistry and Physics·Havala O T PyeAndreas Zuend
Apr 15, 2010·Environmental Science & Technology·Annmarie G CarltonGeorge A Pouliot
Aug 6, 2010·The Journal of Physical Chemistry. a·Nathan C EddingsaasPaul O Wennberg
Oct 5, 2010·Environmental Science & Technology·Annmarie G CarltonMarc Houyoux

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