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Title: Formation of Polycyclic Aromatic Hydrocarbon Oxidation Products in alpha-Pinene Secondary Organic Aerosol Particles Formed through Ozonolysis

Abstract

Accurate long-range atmospheric transport (LRAT) modeling of polycyclic aromatic hydrocarbons (PAHs) and PAH oxidation products (PAH-OPs) in secondary organic aerosol (SOA) particles relies on the known chemical composition of the particles. Four PAHs, phenanthrene (PHE), dibenzothiophene (DBT), pyrene (PYR), and benz(a)anthracene (BaA), were studied individ-ually to identify and quantify PAH-OPs produced and incorporated into SOA particles formed by ozonolysis of a-pinene in the presence of PAH vapor. SOA particles were characterized using real-time in situ instrumentation, and collected on quartz ?ber ?lters for o?ine analysis of PAHs and PAH-OPs. PAH-OPs were measured in all PAH experiments at equal or greater concentrations than the individual PAHs they were produced from. The total mass of PAH and PAH-OPs, relative to the total SOA mass, varied for di?erent experiments on individual parent PAHs: PHE and 6 quanti?ed PHE-OPs (3.0%), DBT and dibenzothiophene sulfone (4.9%), PYR and 3 quanti?ed PYR-OPs (3.1%), and BaA and benz(a)anthracene-7,12-dione (0.26%). Further exposure of PAH-SOA to ozone generally increased the concentration ratio of PAH-OPs to PAH, suggesting longer atmospheric lifetimes for PAH-OPs, relative to PAHs. These data indicate that PAH-OPs are formed during SOA particle formation and growth.

Authors:
 [1];  [2];  [2]; ORCiD logo [2];  [3]
  1. OREGON STATE UNIVERSITY
  2. BATTELLE (PACIFIC NW LAB)
  3. Oregon State University
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1557205
Report Number(s):
PNNL-SA-144860
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Environmental Science & Technology
Additional Journal Information:
Journal Volume: 53; Journal Issue: 12
Country of Publication:
United States
Language:
English

Citation Formats

Kramer, Amber L., Suski, Kaitlyn J., Bell, David M., Zelenyuk-Imre, Alla, and Massey Simonich, Staci L. Formation of Polycyclic Aromatic Hydrocarbon Oxidation Products in alpha-Pinene Secondary Organic Aerosol Particles Formed through Ozonolysis. United States: N. p., 2019. Web. doi:10.1021/acs.est.9b01732.
Kramer, Amber L., Suski, Kaitlyn J., Bell, David M., Zelenyuk-Imre, Alla, & Massey Simonich, Staci L. Formation of Polycyclic Aromatic Hydrocarbon Oxidation Products in alpha-Pinene Secondary Organic Aerosol Particles Formed through Ozonolysis. United States. doi:10.1021/acs.est.9b01732.
Kramer, Amber L., Suski, Kaitlyn J., Bell, David M., Zelenyuk-Imre, Alla, and Massey Simonich, Staci L. Tue . "Formation of Polycyclic Aromatic Hydrocarbon Oxidation Products in alpha-Pinene Secondary Organic Aerosol Particles Formed through Ozonolysis". United States. doi:10.1021/acs.est.9b01732.
@article{osti_1557205,
title = {Formation of Polycyclic Aromatic Hydrocarbon Oxidation Products in alpha-Pinene Secondary Organic Aerosol Particles Formed through Ozonolysis},
author = {Kramer, Amber L. and Suski, Kaitlyn J. and Bell, David M. and Zelenyuk-Imre, Alla and Massey Simonich, Staci L.},
abstractNote = {Accurate long-range atmospheric transport (LRAT) modeling of polycyclic aromatic hydrocarbons (PAHs) and PAH oxidation products (PAH-OPs) in secondary organic aerosol (SOA) particles relies on the known chemical composition of the particles. Four PAHs, phenanthrene (PHE), dibenzothiophene (DBT), pyrene (PYR), and benz(a)anthracene (BaA), were studied individ-ually to identify and quantify PAH-OPs produced and incorporated into SOA particles formed by ozonolysis of a-pinene in the presence of PAH vapor. SOA particles were characterized using real-time in situ instrumentation, and collected on quartz ?ber ?lters for o?ine analysis of PAHs and PAH-OPs. PAH-OPs were measured in all PAH experiments at equal or greater concentrations than the individual PAHs they were produced from. The total mass of PAH and PAH-OPs, relative to the total SOA mass, varied for di?erent experiments on individual parent PAHs: PHE and 6 quanti?ed PHE-OPs (3.0%), DBT and dibenzothiophene sulfone (4.9%), PYR and 3 quanti?ed PYR-OPs (3.1%), and BaA and benz(a)anthracene-7,12-dione (0.26%). Further exposure of PAH-SOA to ozone generally increased the concentration ratio of PAH-OPs to PAH, suggesting longer atmospheric lifetimes for PAH-OPs, relative to PAHs. These data indicate that PAH-OPs are formed during SOA particle formation and growth.},
doi = {10.1021/acs.est.9b01732},
journal = {Environmental Science & Technology},
number = 12,
volume = 53,
place = {United States},
year = {2019},
month = {6}
}