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Real-time continuous characterization of secondary organic aerosol derived from isoprene epoxydiols in downtown Atlanta, Georgia, using the Aerodyne Aerosol Chemical Speciation Monitor.
Environ Sci Technol. 2013 Jun 04; 47(11):5686-94.ES

Abstract

Real-time continuous chemical measurements of fine aerosol were made using an Aerodyne Aerosol Chemical Speciation Monitor (ACSM) during summer and fall 2011 in downtown Atlanta, Georgia. Organic mass spectra measured by the ACSM were analyzed by positive matrix factorization (PMF), yielding three conventional factors: hydrocarbon-like organic aerosol (HOA), semivolatile oxygenated organic aerosol (SV-OOA), and low-volatility oxygenated organic aerosol (LV-OOA). An additional OOA factor that contributed to 33 ± 10% of the organic mass was resolved in summer. This factor had a mass spectrum that strongly correlated (r(2) = 0.74) to that obtained from laboratory-generated secondary organic aerosol (SOA) derived from synthetic isoprene epoxydiols (IEPOX). Time series of this additional factor is also well correlated (r(2) = 0.59) with IEPOX-derived SOA tracers from filters collected in Atlanta but less correlated (r(2) < 0.3) with a methacrylic acid epoxide (MAE)-derived SOA tracer, α-pinene SOA tracers, and a biomass burning tracer (i.e., levoglucosan), and primary emissions. Our analyses suggest IEPOX as the source of this additional factor, which has some correlation with aerosol acidity (r(2) = 0.3), measured as H(+) (nmol m(-3)), and sulfate mass loading (r(2) = 0.48), consistent with prior work showing that these two parameters promote heterogeneous chemistry of IEPOX to form SOA.

Authors+Show Affiliations

Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23638946

Citation

Budisulistiorini, Sri Hapsari, et al. "Real-time Continuous Characterization of Secondary Organic Aerosol Derived From Isoprene Epoxydiols in Downtown Atlanta, Georgia, Using the Aerodyne Aerosol Chemical Speciation Monitor." Environmental Science & Technology, vol. 47, no. 11, 2013, pp. 5686-94.
Budisulistiorini SH, Canagaratna MR, Croteau PL, et al. Real-time continuous characterization of secondary organic aerosol derived from isoprene epoxydiols in downtown Atlanta, Georgia, using the Aerodyne Aerosol Chemical Speciation Monitor. Environ Sci Technol. 2013;47(11):5686-94.
Budisulistiorini, S. H., Canagaratna, M. R., Croteau, P. L., Marth, W. J., Baumann, K., Edgerton, E. S., Shaw, S. L., Knipping, E. M., Worsnop, D. R., Jayne, J. T., Gold, A., & Surratt, J. D. (2013). Real-time continuous characterization of secondary organic aerosol derived from isoprene epoxydiols in downtown Atlanta, Georgia, using the Aerodyne Aerosol Chemical Speciation Monitor. Environmental Science & Technology, 47(11), 5686-94. https://doi.org/10.1021/es400023n
Budisulistiorini SH, et al. Real-time Continuous Characterization of Secondary Organic Aerosol Derived From Isoprene Epoxydiols in Downtown Atlanta, Georgia, Using the Aerodyne Aerosol Chemical Speciation Monitor. Environ Sci Technol. 2013 Jun 4;47(11):5686-94. PubMed PMID: 23638946.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Real-time continuous characterization of secondary organic aerosol derived from isoprene epoxydiols in downtown Atlanta, Georgia, using the Aerodyne Aerosol Chemical Speciation Monitor. AU - Budisulistiorini,Sri Hapsari, AU - Canagaratna,Manjula R, AU - Croteau,Philip L, AU - Marth,Wendy J, AU - Baumann,Karsten, AU - Edgerton,Eric S, AU - Shaw,Stephanie L, AU - Knipping,Eladio M, AU - Worsnop,Douglas R, AU - Jayne,John T, AU - Gold,Avram, AU - Surratt,Jason D, Y1 - 2013/05/21/ PY - 2013/5/4/entrez PY - 2013/5/4/pubmed PY - 2014/5/16/medline SP - 5686 EP - 94 JF - Environmental science & technology JO - Environ Sci Technol VL - 47 IS - 11 N2 - Real-time continuous chemical measurements of fine aerosol were made using an Aerodyne Aerosol Chemical Speciation Monitor (ACSM) during summer and fall 2011 in downtown Atlanta, Georgia. Organic mass spectra measured by the ACSM were analyzed by positive matrix factorization (PMF), yielding three conventional factors: hydrocarbon-like organic aerosol (HOA), semivolatile oxygenated organic aerosol (SV-OOA), and low-volatility oxygenated organic aerosol (LV-OOA). An additional OOA factor that contributed to 33 ± 10% of the organic mass was resolved in summer. This factor had a mass spectrum that strongly correlated (r(2) = 0.74) to that obtained from laboratory-generated secondary organic aerosol (SOA) derived from synthetic isoprene epoxydiols (IEPOX). Time series of this additional factor is also well correlated (r(2) = 0.59) with IEPOX-derived SOA tracers from filters collected in Atlanta but less correlated (r(2) < 0.3) with a methacrylic acid epoxide (MAE)-derived SOA tracer, α-pinene SOA tracers, and a biomass burning tracer (i.e., levoglucosan), and primary emissions. Our analyses suggest IEPOX as the source of this additional factor, which has some correlation with aerosol acidity (r(2) = 0.3), measured as H(+) (nmol m(-3)), and sulfate mass loading (r(2) = 0.48), consistent with prior work showing that these two parameters promote heterogeneous chemistry of IEPOX to form SOA. SN - 1520-5851 UR - https://www.unboundmedicine.com/medline/citation/23638946/Real_time_continuous_characterization_of_secondary_organic_aerosol_derived_from_isoprene_epoxydiols_in_downtown_Atlanta_Georgia_using_the_Aerodyne_Aerosol_Chemical_Speciation_Monitor_ L2 - https://doi.org/10.1021/es400023n DB - PRIME DP - Unbound Medicine ER -