Journal article
Response of the Aerodyne Aerosol Mass Spectrometer to Inorganic Sulfates and Organosulfur Compounds: Applications in Field and Laboratory Measurements
Environmental science & technology, Vol.53(9), pp.5176-5186
05/07/2019
DOI: 10.1021/acs.est.9b00884
PMID: 30939000
Abstract
Organosulfur compounds are important components of secondary organic aerosols (SOA). While the Aerodyne high-resolution time-of-flight aerosol mass spectrometer (AMS) has been extensively used in aerosol studies, the response of the AMS to organosulfur compounds is not well-understood. Here, we investigated the fragmentation patterns of organosulfurs and inorganic sulfates in the AMS, developed a method to deconvolve total sulfate into components of inorganic and organic origins, and applied this method in both laboratory and field measurements. Apportionment results from laboratory isoprene photooxidation experiment showed that with inorganic sulfate seed, sulfate functionality of organic origins can contribute ∼7% of SOA mass at peak growth. Results from measurements in the Southeastern U.S. showed that 4% of measured sulfate is from organosulfur compounds. Methanesulfonic acid was estimated for measurements in the coastal and remote marine boundary layer. We explored the application of this method to unit mass-resolution data, where it performed less well due to interferences. Our apportionment results demonstrate that organosulfur compounds could be a non-negligible source of sulfate fragments in AMS laboratory and field data sets. A reevaluation of previous AMS measurements over the full range of atmospheric conditions using this method could provide a global estimate/constraint on the contribution of organosulfur compounds.
Details
- Title: Subtitle
- Response of the Aerodyne Aerosol Mass Spectrometer to Inorganic Sulfates and Organosulfur Compounds: Applications in Field and Laboratory Measurements
- Creators
- Yunle Chen - School of Earth and Atmospheric Sciences , Georgia Institute of Technology , Atlanta , Georgia 30332 , United StatesLu Xu - Now at Division of Geological and Planetary Sciences , California Institute of Technology , Pasadena , California 91125 , United StatesTim Humphry - Department of Chemistry , Truman State University , Kirksville , Missouri 63501 , United StatesAnusha P S Hettiyadura - Department of Chemistry , University of Iowa , Iowa City , Iowa 52242 , United StatesJurgita Ovadnevaite - School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute , National University of Ireland Galway , Galway H91 TK33 , IrelandShan Huang - Leibniz Institute for Tropospheric Research , Leipzig , Sachsen 04318 , GermanyLaurent Poulain - Leibniz Institute for Tropospheric Research , Leipzig , Sachsen 04318 , GermanyJason C Schroder - Cooperative Institute for Research in the Environmental Sciences (CIRES) , University of Colorado , Boulder , Colorado 80309 , United StatesPedro Campuzano-Jost - Cooperative Institute for Research in the Environmental Sciences (CIRES) , University of Colorado , Boulder , Colorado 80309 , United StatesJose L Jimenez - Cooperative Institute for Research in the Environmental Sciences (CIRES) , University of Colorado , Boulder , Colorado 80309 , United StatesHartmut Herrmann - Leibniz Institute for Tropospheric Research , Leipzig , Sachsen 04318 , GermanyColin O'Dowd - School of Physics and Centre for Climate and Air Pollution Studies, Ryan Institute , National University of Ireland Galway , Galway H91 TK33 , IrelandElizabeth A Stone - Department of Chemistry , University of Iowa , Iowa City , Iowa 52242 , United StatesNga Lee Ng - School of Chemical and Biomolecular Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- Resource Type
- Journal article
- Publication Details
- Environmental science & technology, Vol.53(9), pp.5176-5186
- DOI
- 10.1021/acs.est.9b00884
- PMID
- 30939000
- NLM abbreviation
- Environ Sci Technol
- ISSN
- 0013-936X
- eISSN
- 1520-5851
- Grant note
- P30 ES005605 / NIEHS NIH HHS
- Language
- English
- Date published
- 05/07/2019
- Academic Unit
- Chemistry; Chemical and Biochemical Engineering
- Record Identifier
- 9984216720302771
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