Atmospheric Chemistry of 2,3-Pentanedione: Photolysis and Reaction with OH Radicals

2011 ◽  
Vol 115 (33) ◽  
pp. 9160-9168 ◽  
Author(s):  
Emese Szabó ◽  
Mokhtar Djehiche ◽  
Matthieu Riva ◽  
Christa Fittschen ◽  
Patrice Coddeville ◽  
...  
Keyword(s):  
Atmospheric Chemistry ◽  
Oh Radicals

Atmospheric Chemistry of CH3CH2OCH3: Kinetics and Mechanism of Reactions with Cl Atoms and OH Radicals

2016 ◽  
Vol 49 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Mads P. Sulbaek Andersen ◽  
Sissel Bjørn Svendsen ◽  
Freja From Østerstrøm ◽  
Ole John Nielsen
Keyword(s):  
Atmospheric Chemistry ◽  
Kinetics And Mechanism ◽  
Oh Radicals ◽  
Cl Atoms

Atmospheric chemistry of trans-CF3CHCHCl: Kinetics of the gas-phase reactions with Cl atoms, OH radicals, and O3

2008 ◽  
Vol 199 (1) ◽  
pp. 92-97 ◽  
Author(s):  
M.P. Sulbaek Andersen ◽  
E.J.K. Nilsson ◽  
O.J. Nielsen ◽  
M.S. Johnson ◽  
M.D. Hurley ◽  
...  
Keyword(s):  
Gas Phase ◽  
Atmospheric Chemistry ◽  
Oh Radicals ◽  
Gas Phase Reactions ◽  
Kinetics Of ◽  
Cl Atoms

Atmospheric Chemistry of Perfluorinated Carboxylic Acids:  Reaction with OH Radicals and Atmospheric Lifetimes

2004 ◽  
Vol 108 (4) ◽  
pp. 615-620 ◽  
Author(s):  
M. D. Hurley ◽  
M. P. Sulbaek Andersen ◽  
T. J. Wallington ◽  
D. A. Ellis ◽  
J. W. Martin ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Atmospheric Chemistry ◽  
Oh Radicals ◽  
Perfluorinated Carboxylic Acids

Atmospheric Chemistry of Pentafluorophenol: Kinetics and Mechanism of the Reactions of Cl Atoms and OH Radicals

2019 ◽  
Vol 123 (47) ◽  
pp. 10315-10322
Author(s):  
Freja Hasager ◽  
Simone Thirstrup Andersen ◽  
Sofie Askjaer Hass ◽  
Mads P. Sulbaek Andersen ◽  
Ole John Nielsen
Keyword(s):  
Atmospheric Chemistry ◽  
Kinetics And Mechanism ◽  
Oh Radicals ◽  
Cl Atoms

scholarly journals Evaluating the measurement interference of wet rotating-denuder–ion chromatography in measuring atmospheric HONO in a highly polluted area

2019 ◽  
Vol 12 (12) ◽  
pp. 6737-6748 ◽  
Author(s):  
Zheng Xu ◽  
Yuliang Liu ◽  
Wei Nie ◽  
Peng Sun ◽  
Xuguang Chi ◽  
...  
Keyword(s):  
Ion Chromatography ◽  
Atmospheric Chemistry ◽  
Eastern China ◽  
Ambient Air ◽  
Absorption Efficiency ◽  
Water Soluble ◽  
East China ◽  
Oh Radicals ◽  
Ambient Atmosphere ◽  
High Concentrations

Abstract. Due to the important contribution of nitrous acid (HONO) to OH radicals in the atmosphere, various technologies have been developed to measure HONO. Among them, wet-denuder–ion-chromatography (WD/IC) is a widely used measurement method. Here, we found interferences with HONO measurements by WD/IC based on a comparison study of concurrent observations of HONO concentrations using a WD/IC instrument (Monitor for AeRosols and Gases in ambient Air, MARGA) and long-path absorption photometer (LOPAP) at the Station for Observing Regional Processes of the Earth System (SORPES) in eastern China. The measurement deviation of the HONO concentration with the MARGA instrument, as a typical instrument for WD/IC, is affected by two factors. One is the change in denuder pH influenced by acidic and alkaline gases in the ambient atmosphere, which can affect the absorption efficiency of HONO by the wet denuder to underestimate the HONO concentration by up to 200 % at the lowest pH. The other is the reaction of NO2 oxidizing SO2 to form HONO in the denuder solution to overestimate the HONO concentration, which can be increased by to 400 % in denuder solutions with the highest pH values due to ambient NH3. These processes are in particularly important in polluted east China, which suffers from high concentrations of SO2, NH3, and NO2. The overestimation induced by the reaction of NO2 and SO2 is expected to be of growing importance with the potentially increased denuder pH due to the decrease in SO2. We further established a method to correct the HONO data measured by a WD/IC instrument such as the MARGA. In case a large amount WD/IC-technique-based instruments are deployed with the main target of monitoring the water-soluble composition of PM2.5, our study can help to obtain a long-term multi-sites database of HONO to assess the role of HONO in atmospheric chemistry and air pollution in east China.

scholarly journals Atmospheric Chemistry, Sources, and Sinks of Carbon Suboxide, C<sub>3</sub>O<sub>2</sub>

2017 ◽  
Author(s):  
Stephan Keßel ◽  
David Cabrera-Perez ◽  
Abraham Horowitz ◽  
Patrick R. Veres ◽  
Rolf Sander ◽  
...  
Keyword(s):  
Atmospheric Chemistry ◽  
Relative Rate ◽  
Ambient Air ◽  
Rate Coefficients ◽  
Oh Radicals ◽  
Carbon Suboxide ◽  
Air Samples ◽  
Sources And Sinks

Abstract. Carbon suboxide, O = C = C = C = O, has been detected in ambient air samples and has the potential to be a noxious pollutant and oxidant precursor; however, its lifetime and fate in the atmosphere is largely unknown. In this work, we collect an extensive set of studies on the atmospheric chemistry of C3O2. Rate coefficients for the reactions of C3O2 with OH radicals and ozone were determined using relative rate techniques as k4 = (2.6 ± 0.5) × 10−12 cm3 molecule−1 s1 at 295 K (independent of pressure between ~ 25 and 1000 mbar) and k6 

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