Reactive Uptake of Glyoxal by Ammonium-Containing Salt Particles as a Function of Relative Humidity

Environmental Science & Technology
Masao GenChak K Chan

Abstract

Reactions between dissolved ammonia and carbonyls, which form light-absorbing species in atmospheric particles, can be accelerated by actively removing water from the reaction system. Here, we examine the effects of relative humidity (RH) on the reactive uptake of glyoxal (Gly) by aqueous particles of ammonium sulfate (AS), ammonium bisulfate, sodium sulfate, magnesium sulfate, ammonium nitrate (AN), and sodium nitrate. In situ Raman analysis was used to quantify particle-phase Gly and a colored product, 2,2'-biimidazole (BI), as a function of uptake time. Overall, the Gly uptake rate increases with decreasing RH, reflecting the "salting-in" effect. The BI formation rate increases significantly with decreasing RH or aerosol liquid water (ALW). Compared to that at 75% RH, the BI formation rate is enhanced by factors of 29 at 60% RH and 330 at 45% RH for AS particles and 65 at 60% RH, 210 at 45% RH, and 460 at 30% RH for AN particles. These enhancement factors are much larger than those estimated from increased reactant concentrations due to decreases in RH and ALW alone. We postulate that the reduction in ALW at low RH increases the Gly uptake rate via the "salting-in" effect and the BI formation rate by facilitating dehydration...Continue Reading

References

Apr 17, 2003·Journal of the American Chemical Society·Fei MaoAdam Heller
Dec 11, 2003·Chemical Reviews·Courtney R UsherVicki H Grassian
Apr 12, 2005·Environmental Science & Technology·John LiggioRobert McLaren
Mar 6, 2008·Journal of Agricultural and Food Chemistry·An AdamsNorbert De Kimpe
Aug 9, 2008·Science·Duncan T L AlexanderJames R Anderson
Jan 3, 2009·The Journal of Physical Chemistry. a·Barbara NozièreArmando Córdova
May 30, 2009·Environmental Science & Technology·David O De HaanGrant R Ferrell
Dec 22, 2010·Environmental Science & Technology·David O De HaanJose L Jimenez
Jul 5, 2011·Environmental Science & Technology·Ge YuFrank N Keutsch
Feb 1, 2012·The Journal of Physical Chemistry. a·Miri TrainicYinon Rudich
Aug 29, 2012·Proceedings of the National Academy of Sciences of the United States of America·Daniel A LackJoshua P Schwarz
Oct 27, 2012·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Elena Avzianova, Sarah D Brooks
Mar 29, 2013·Environmental Science & Technology·Christopher J KampfRainer Volkamer
Oct 26, 2013·Environmental Science & Technology·Alex K Y LeeJonathan P D Abbatt
Dec 20, 2013·Environmental Science & Technology·Michelle H PowelsonDavid O De Haan
Feb 22, 2014·Environmental Science & Technology·Stéphanie RossignolChristian George
Jan 1, 2013·Faraday Discussions·Tran B NguyenSergey A Nizkorodov
Nov 20, 2014·The Journal of Physical Chemistry. a·Theo KurténRainer Volkamer
Feb 27, 2015·Chemical Reviews·Alexander LaskinSergey A Nizkorodov
Jul 16, 2015·Physical Chemistry Chemical Physics : PCCP·A MaxutH Mechakra
Apr 26, 2017·The Journal of Physical Chemistry. a·Christopher M Stangl, Murray V Johnston
Sep 1, 2017·Environmental Science & Technology·Paige K AionaSergey A Nizkorodov

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Citations

Dec 2, 2020·The Science of the Total Environment·Chunlei ChengZhen Zhou
Apr 17, 2021·Environmental Science & Technology·Ruifeng ZhangChak K Chan
Aug 12, 2021·Environmental Science & Technology·Jack C HensleyFrank N Keutsch
Sep 15, 2020·Environmental Science & Technology·Nethmi Y KasthuriarachchiAlex K Y Lee
Aug 26, 2020·Environmental Science & Technology·Yiming QinScot T Martin

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