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Cited by 293

The DOI matches its Crossref record; 94 of the 94 references it cites were found in a registry or an index.

On the implications of aerosol liquid water and phase separation for organic aerosol mass

Open access
Pye, Havala O. T., Murphy, Benjamin N., Xu, Lu, Ng, Nga L., Carlton, Annmarie G., Guo, Hongyu, Weber, Rodney, Vasilakos, Petros, Appel, K. Wyat, Budisulistiorini, Sri Hapsari, Surratt, Jason D., Nenes, Athanasios, Hu, Weiwei, Jimenez, Jose L., Isaacman-VanWertz, Gabriel, Misztal, Pawel K., Goldstein, Allen H.·2017·Atmospheric Chemistry and Physics

Abstract

Abstract. Organic compounds and liquid water are major aerosol constituents in the southeast United States (SE US). Water associated with inorganic constituents (inorganic water) can contribute to the partitioning medium for organic aerosol when relative humidities or organic matter to organic carbon (OM ∕ OC) ratios are high such that separation relative humidities (SRH) are below the ambient relative humidity (RH). As OM ∕ OC ratios in the SE US are often between 1.8 and 2.2, organic aerosol experiences both mixing with inorganic water and separation from it. Regional chemical transport model simulations including inorganic water (but excluding water uptake by organic compounds) in the partitioning medium for secondary organic aerosol (SOA) when RH > SRH led to increased SOA concentrations, particularly at night. Water uptake to the organic phase resulted in even greater SOA concentrations as a result of a positive feedback in which water uptake increased SOA, which further increased aerosol water and organic aerosol. Aerosol properties, such as the OM ∕ OC and hygroscopicity parameter (κorg), were captured well by the model compared with measurements during the Southern Oxidant and Aerosol Study (SOAS) 2013. Organic nitrates from monoterpene oxidation were predicted to be the least water-soluble semivolatile species in the model, but most biogenically derived semivolatile species in the Community Multiscale Air Quality (CMAQ) model were highly water soluble and expected to contribute to water-soluble organic carbon (WSOC). Organic aerosol and SOA precursors were abundant at night, but additional improvements in daytime organic aerosol are needed to close the model–measurement gap. When taking into account deviations from ideality, including both inorganic (when RH > SRH) and organic water in the organic partitioning medium reduced the mean bias in SOA for routine monitoring networks and improved model performance compared to observations from SOAS. Property updates from this work will be released in CMAQ v5.2.

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Metadata

Authors
Pye, H. O. T., Murphy, B. N., Xu, L., Ng, N. L., Carlton, A. G., Guo, H., Weber, R., Vasilakos, P., Appel, K. W., Budisulistiorini, S. H., Surratt, J. D., Nenes, A., Hu, W., Jimenez, J. L., Isaacman-VanWertz, G., Misztal, P. K., & Goldstein, A. H.
Venue
Atmospheric Chemistry and Physics
Published
2017-01-06
Volume
17
Issue
1
Pages
343-369
ISSN
  • 1680-7316 (ISSN-L)
  • 1680-7324
OpenAlex
W2511648696
Cited by
293
References
94
FWCI
14.18
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: On the implications of aerosol liquid water and phase separation for organic aerosol mass. https://app.cochat.ai/papers/10.5194/acp-17-343-2017
The paper
Pye, H. O. T., Murphy, B. N., Xu, L., Ng, N. L., Carlton, A. G., Guo, H., Weber, R., Vasilakos, P., Appel, K. W., Budisulistiorini, S. H., Surratt, J. D., Nenes, A., Hu, W., Jimenez, J. L., Isaacman-VanWertz, G., Misztal, P. K., & Goldstein, A. H. (2017). On the implications of aerosol liquid water and phase separation for organic aerosol mass. Atmospheric Chemistry and Physics. https://doi.org/10.5194/acp-17-343-2017

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