Articles | Volume 17, issue 8
https://doi.org/10.5194/acp-17-5107-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-5107-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
19 Apr 2017
Research article |
| 19 Apr 2017
Inconsistency of ammonium–sulfate aerosol ratios with thermodynamic models in the eastern US: a possible role of organic aerosol
Department of Earth and Planetary Sciences, Harvard University,
Cambridge, MA, USA
Daniel J. Jacob
Department of Earth and Planetary Sciences, Harvard University,
Cambridge, MA, USA
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
Patrick S. Kim
Department of Earth and Planetary Sciences, Harvard University,
Cambridge, MA, USA
Eloise A. Marais
John A. Paulson School of Engineering and Applied Sciences, Harvard
University, Cambridge, MA, USA
now at: School of Geography, Earth and Environmental Sciences,
University of Birmingham, Edgbaston, UK
Jay R. Turner
Department of Energy, Environmental and Chemical Engineering,
Washington University, St. Louis, MO, USA
Pedro Campuzano-Jost
Cooperative Institute for Research in Environmental Sciences,
University of Colorado Boulder, Boulder, CO, USA
Department of Chemistry and Biochemistry, University of Colorado
Boulder, Boulder, CO, USA
Jose L. Jimenez
Cooperative Institute for Research in Environmental Sciences,
University of Colorado Boulder, Boulder, CO, USA
Department of Chemistry and Biochemistry, University of Colorado
Boulder, Boulder, CO, USA
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45 citations as recorded by crossref.
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- Coupling of organic and inorganic aerosol systems and the effect on gas–particle partitioning in the southeastern US H. Pye et al. 10.5194/acp-18-357-2018
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- Performance of a Thermodynamic Model for Predicting Inorganic Aerosols in the Southeastern U.S. B. Cheng et al. 10.3390/atmos13121977
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- Yearly changes of the sulfate-nitrate-ammonium aerosols and the relationship with their precursors from 1999 to 2016 in Beijing Y. Xie 10.1007/s11356-019-07493-w
- Importance of gas-particle partitioning of ammonia in haze formation in the rural agricultural environment J. Xu et al. 10.5194/acp-20-7259-2020
- Seasonal variations in size distribution, water-soluble ions, and carbon content of size-segregated aerosols over New Delhi P. Kumar et al. 10.1007/s11356-017-0954-6
- Current State of Atmospheric Aerosol Thermodynamics and Mass Transfer Modeling: A Review K. Semeniuk & A. Dastoor 10.3390/atmos11020156
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- Effects of NH3 and alkaline metals on the formation of particulate sulfate and nitrate in wintertime Beijing R. Huang et al. 10.1016/j.scitotenv.2020.137190
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Saved (preprint)
Latest update: 19 Apr 2024
Short summary
We identify a fundamental discrepancy between thermodynamic equilibrium theory and observations of inorganic aerosol composition in the eastern US in summer that shows low ammonium sulfate aerosol ratios. In addition, from 2003 to 2013, while SO2 emissions have declined due to US emission controls, aerosols have become more acidic in the southeastern US. To explain these observations, we suggest that the large and increasing source of organic aerosol may be affecting thermodynamic equilibrium.
We identify a fundamental discrepancy between thermodynamic equilibrium theory and observations...
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