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Chen J, Lane JR, Bates KH, Kjaergaard HG. Atmospheric Gas-Phase Formation of Methanesulfonic Acid. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:21168-21177. [PMID: 38051922 DOI: 10.1021/acs.est.3c07120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Despite its impact on the climate, the mechanism of methanesulfonic acid (MSA) formation in the oxidation of dimethyl sulfide (DMS) remains unclear. The DMS + OH reaction is known to form methanesulfinic acid (MSIA), methane sulfenic acid (MSEA), the methylthio radical (CH3S), and hydroperoxymethyl thioformate (HPMTF). Among them, HPMTF reacts further to form SO2 and OCS, while the other three form the CH3SO2 radical. Based on theoretical calculations, we find that the CH3SO2 radical can add O2 to form CH3S(O)2OO, which can react further to form MSA. The branching ratio is highly temperature sensitive, and the MSA yield increases with decreasing temperature. In warmer regions, SO2 is the dominant product of DMS oxidation, while in colder regions, large amounts of MSA can form. Global modeling indicates that the proposed temperature-sensitive MSA formation mechanism leads to a substantial increase in the simulated global atmospheric MSA formation and burden.
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Affiliation(s)
- Jing Chen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
| | - Joseph R Lane
- School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand
| | - Kelvin H Bates
- NOAA Chemical Sciences Laboratory, Earth System Research Laboratories & Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado 80305, United States
| | - Henrik G Kjaergaard
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen Ø DK-2100, Denmark
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Wang Y, Hu R, Xie P, Chen H, Wang F, Liu X, Liu J, Liu W. Measurement of tropospheric HO 2 radical using fluorescence assay by gas expansion with low interferences. J Environ Sci (China) 2021; 99:40-50. [PMID: 33183715 DOI: 10.1016/j.jes.2020.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
An instrument to detect atmospheric HO2 radicals using fluorescence assay by gas expansion (FAGE) technique has been developed. HO2 is measured by reaction with NO to form OH and subsequent detection of OH by laser-induced fluorescence at low pressure. The system performance has been improved by optimizing the expansion distance and pressure, the influence factors of HO2 conversion efficiency are also studied. The interferences of RO2 radicals were investigated by determining the conversion efficiency of RO2 to OH during the measurement of HO2. The dependence of the conversion of HO2 on NO concentration was investigated, and low HO2 conversion efficiency was selected to realize the ambient HO2 measurement, where the conversion efficiency of RO2 derived by propane, ethene, isoprene and methanol to OH has been reduced to less than 6% in the atmosphere. Furthermore, no significant interferences from PM2.5 and NO were found in the ambient HO2 measurement. The detection limits for HO2 (S/N = 2) are estimated to 4.8 × 105 cm-3 and 1.1 × 106 cm-3 ( [Formula: see text] = 20%) under night and noon conditions, with 60 sec signal integration time. The instrument was successfully deployed during STORM-2018 field campaign at Shenzhen graduate school of Peking University. The concentration of atmospheric HOx radical and the good correlation of OH with j(O1D) was obtained here. The diurnal variation of HOx concentration shows that the OH maximum concentration of those days is about 5.3 × 106 cm-3 appearing around 12:00, while the HO2 maximum concentration is about 4.2 × 108 cm-3 appearing around 13:30.
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Affiliation(s)
- Yihui Wang
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, Anhui, China; Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Renzhi Hu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China.
| | - Pinhua Xie
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China; CAS Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361000, Fujian, China; University of Chinese Academy of Sciences, Beijing 100049, Beijing, China.
| | - Hao Chen
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China; College of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu, China
| | - Fengyang Wang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Xiaoyan Liu
- College of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
| | - JianGuo Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Wenqing Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, Anhui, China
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Travis KR, Heald CL, Allen HM, Apel EC, Arnold SR, Blake DR, Brune WH, Chen X, Commane R, Crounse JD, Daube BC, Diskin GS, Elkins JW, Evans MJ, Hall SR, Hintsa EJ, Hornbrook RS, Kasibhatla PS, Kim MJ, Luo G, McKain K, Millet DB, Moore FL, Peischl J, Ryerson TB, Sherwen T, Thames AB, Ullmann K, Wang X, Wennberg PO, Wolfe GM, Yu F. Constraining remote oxidation capacity with ATom observations. ATMOSPHERIC CHEMISTRY AND PHYSICS 2020; 20:7753-7781. [PMID: 33688335 PMCID: PMC7939060 DOI: 10.5194/acp-20-7753-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The global oxidation capacity, defined as the tropospheric mean concentration of the hydroxyl radical (OH), controls the lifetime of reactive trace gases in the atmosphere such as methane and carbon monoxide (CO). Models tend to underestimate the methane lifetime and CO concentrations throughout the troposphere, which is consistent with excessive OH. Approximately half of the oxidation of methane and non-methane volatile organic compounds (VOCs) is thought to occur over the oceans where oxidant chemistry has received little validation due to a lack of observational constraints. We use observations from the first two deployments of the NASA ATom aircraft campaign during July-August 2016 and January-February 2017 to evaluate the oxidation capacity over the remote oceans and its representation by the GEOS-Chem chemical transport model. The model successfully simulates the magnitude and vertical profile of remote OH within the measurement uncertainties. Comparisons against the drivers of OH production (water vapor, ozone, and NO y concentrations, ozone photolysis frequencies) also show minimal bias, with the exception of wintertime NO y . The severe model overestimate of NO y during this period may indicate insufficient wet scavenging and/or missing loss on sea-salt aerosols. Large uncertainties in these processes require further study to improve simulated NO y partitioning and removal in the troposphere, but preliminary tests suggest that their overall impact could marginally reduce the model bias in tropospheric OH. During the ATom-1 deployment, OH reactivity (OHR) below 3 km is significantly enhanced, and this is not captured by the sum of its measured components (cOHRobs) or by the model (cOHRmod). This enhancement could suggest missing reactive VOCs but cannot be explained by a comprehensive simulation of both biotic and abiotic ocean sources of VOCs. Additional sources of VOC reactivity in this region are difficult to reconcile with the full suite of ATom measurement constraints. The model generally reproduces the magnitude and seasonality of cOHRobs but underestimates the contribution of oxygenated VOCs, mainly acetaldehyde, which is severely underestimated throughout the troposphere despite its calculated lifetime of less than a day. Missing model acetaldehyde in previous studies was attributed to measurement uncertainties that have been largely resolved. Observations of peroxyacetic acid (PAA) provide new support for remote levels of acetaldehyde. The underestimate in both model acetaldehyde and PAA is present throughout the year in both hemispheres and peaks during Northern Hemisphere summer. The addition of ocean sources of VOCs in the model increases cOHRmod by 3% to 9% and improves model-measurement agreement for acetaldehyde, particularly in winter, but cannot resolve the model summertime bias. Doing so would require 100 Tg yr-1 of a long-lived unknown precursor throughout the year with significant additional emissions in the Northern Hemisphere summer. Improving the model bias for remote acetaldehyde and PAA is unlikely to fully resolve previously reported model global biases in OH and methane lifetime, suggesting that future work should examine the sources and sinks of OH over land.
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Affiliation(s)
- Katherine R. Travis
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Colette L. Heald
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Hannah M. Allen
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Eric C. Apel
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Stephen R. Arnold
- Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
| | - Donald R. Blake
- Department of Chemistry, University of California Irvine, Irvine, CA, USA
| | - William H. Brune
- Department of Meteorology, Pennsylvania State University, University Park, PA, USA
| | - Xin Chen
- University of Minnesota, Department of Soil, Water and Climate, St. Paul, MN, USA
| | - Róisín Commane
- Dept. of Earth & Environmental Sciences of Lamont-Doherty Earth Observatory and Columbia University, Palisades, NY, USA
| | - John D. Crounse
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Bruce C. Daube
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | | | - James W. Elkins
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Mathew J. Evans
- Wolfson Atmospheric Chemistry Laboratories (WACL), Department of Chemistry, University of York, York, UK
- National Centre for Atmospheric Science (NCAS), University of York, York, UK
| | - Samuel R. Hall
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Eric J. Hintsa
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Rebecca S. Hornbrook
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | | | - Michelle J. Kim
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA
| | - Gan Luo
- Atmospheric Sciences Research Center, University of Albany, Albany, NY, USA
| | - Kathryn McKain
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Dylan B. Millet
- University of Minnesota, Department of Soil, Water and Climate, St. Paul, MN, USA
| | - Fred L. Moore
- Global Monitoring Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
| | - Jeffrey Peischl
- Cooperative Institute for Research in Environmental Science, University of Colorado, CO, USA
- Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Thomas B. Ryerson
- Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, USA
| | - Tomás Sherwen
- Wolfson Atmospheric Chemistry Laboratories (WACL), Department of Chemistry, University of York, York, UK
- National Centre for Atmospheric Science (NCAS), University of York, York, UK
| | - Alexander B. Thames
- Department of Meteorology, Pennsylvania State University, University Park, PA, USA
| | - Kirk Ullmann
- Atmospheric Chemistry Observations & Modeling Laboratory, National Center for Atmospheric Research, Boulder, CO, USA
| | - Xuan Wang
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Paul O. Wennberg
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
- Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, USA
| | - Glenn M. Wolfe
- Atmospheric Chemistry and Dynamics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA
| | - Fangqun Yu
- Atmospheric Sciences Research Center, University of Albany, Albany, NY, USA
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Wang F, Hu R, Chen H, Xie P, Wang Y, Li Z, Jin H, Liu J, Liu W. Development of a field system for measurement of tropospheric OH radical using laser-induced fluorescence technique. OPTICS EXPRESS 2019; 27:A419-A435. [PMID: 31052893 DOI: 10.1364/oe.27.00a419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
A ground-based system for measuring tropospheric OH radical based on laser-induced fluorescence (AIOFM-LIF) was developed in this work. In this system, ambient air is expanded through a 0.4 mm nozzle to low pressure in a detection chamber, where OH radical is irradiated by the 308 nm laser pulse at a repetition rate of 8.5 kHz. Then, the resultant fluorescence corresponding to the A2Σ+(υ'=0)←X2Πi(ν''=0) transition at 308 nm is detected using gated photon counting. The AIOFM-LIF system was integrated into a mobile observing platform for the field observation following the series of laboratory characterization. A portable standard OH radical source by water photolysis-ozone actinometry was established and optimized for accurate system calibration. The factors affecting the system sensitivity were quantified. It was shown that the ultimate system sensitivity is 9.9 × 10-8 cps (molecules cm-3)-1 mw-1; the minimum detection limits are (1.84 ± 0.26) × 105 cm-3 and (3.69 ± 0.52) × 105 cm-3 at night and noon, respectively; and the whole error of AIOFM-LIF system is about 16%. Then, the system was deployed in Shenzhen, China, during the "A comprehensive STudy of the Ozone foRmation Mechanism in Shenzhen" (STORM) campaign. Valid OH radical concentrations for 31 days were obtained, and the peak of the daily average concentration was 6.6 × 106 cm-3 around 12:00. And a high correlation (R2 = 0.77) between OH and j(O1D) was also observed in this field campaign. The relationship between OH concentration and NOx was attentively discussed. The deployment of AIOFM-LIF system in STORM campaign has demonstrated its capability of measuring tropospheric OH radical with high sensitivity and accuracy in a polluted environment.
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Stone D, Blitz M, Ingham T, Onel L, Medeiros DJ, Seakins PW. An instrument to measure fast gas phase radical kinetics at high temperatures and pressures. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:054102. [PMID: 27250442 DOI: 10.1063/1.4950906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Fast radical reactions are central to the chemistry of planetary atmospheres and combustion systems. Laser-induced fluorescence is a highly sensitive and selective technique that can be used to monitor a number of radical species in kinetics experiments, but is typically limited to low pressure systems owing to quenching of fluorescent states at higher pressures. The design and characterisation of an instrument are reported using laser-induced fluorescence detection to monitor fast radical kinetics (up to 25 000 s(-1)) at high temperatures and pressures by sampling from a high pressure reaction region to a low pressure detection region. Kinetics have been characterised at temperatures reaching 740 K and pressures up to 2 atm, with expected maximum operational conditions of up to ∼900 K and ∼5 atm. The distance between the point of sampling from the high pressure region and the point of probing within the low pressure region is critical to the measurement of fast kinetics. The instrumentation described in this work can be applied to the measurement of kinetics relevant to atmospheric and combustion chemistry.
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Affiliation(s)
- Daniel Stone
- School of Chemistry, University of Leeds, Leeds, United Kingdom
| | - Mark Blitz
- School of Chemistry, University of Leeds, Leeds, United Kingdom
| | - Trevor Ingham
- School of Chemistry, University of Leeds, Leeds, United Kingdom
| | - Lavinia Onel
- School of Chemistry, University of Leeds, Leeds, United Kingdom
| | | | - Paul W Seakins
- School of Chemistry, University of Leeds, Leeds, United Kingdom
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6
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Stone D, Whalley LK, Heard DE. Tropospheric OH and HO2 radicals: field measurements and model comparisons. Chem Soc Rev 2012; 41:6348-404. [DOI: 10.1039/c2cs35140d] [Citation(s) in RCA: 332] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ren X, Olson JR, Crawford JH, Brune WH, Mao J, Long RB, Chen Z, Chen G, Avery MA, Sachse GW, Barrick JD, Diskin GS, Huey LG, Fried A, Cohen RC, Heikes B, Wennberg PO, Singh HB, Blake DR, Shetter RE. HOxchemistry during INTEX-A 2004: Observation, model calculation, and comparison with previous studies. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009166] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xinrong Ren
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - Jennifer R. Olson
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - James H. Crawford
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - William H. Brune
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - Jingqiu Mao
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - Robert B. Long
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - Zhong Chen
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - Gao Chen
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - Melody A. Avery
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - Glen W. Sachse
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - John D. Barrick
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - Glenn S. Diskin
- Science Directorate; NASA Langley Research Center; Hampton Virginia USA
| | - L. Greg Huey
- School of Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta Georgia USA
| | - Alan Fried
- Earth Observing Laboratory; National Center for Atmospheric Research; Boulder Colorado USA
| | - Ronald C. Cohen
- Department of Chemistry and Department of Earth and Planetary Science; University of California; Berkeley California USA
| | - Brian Heikes
- Graduate School of Oceanography; University of Rhode Island; Narragansett Rhode Island USA
| | - Paul O. Wennberg
- Division of Engineering and Applied Sciences; California Institute of Technology; Pasadena California USA
| | | | - Donald R. Blake
- Department of Chemistry; University of California; Irvine California USA
| | - Richard E. Shetter
- National Suborbital Education and Research Center; University of North Dakota; Grand Forks North Dakota USA
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Kanno N, Tonokura K, Koshi M. Equilibrium constant of the HO2-H2O complex formation and kinetics of HO2+ HO2-H2O: Implications for tropospheric chemistry. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006805] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhu L, Nenes A, Wine PH, Nicovich JM. Effects of aqueous organosulfur chemistry on particulate methanesulfonate to non–sea salt sulfate ratios in the marine atmosphere. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006326] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Chu L, Anastasio C. Formation of Hydroxyl Radical from the Photolysis of Frozen Hydrogen Peroxide. J Phys Chem A 2005; 109:6264-71. [PMID: 16833967 DOI: 10.1021/jp051415f] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogen peroxide (HOOH) in ice and snow is an important chemical tracer for the oxidative capacities of past atmospheres. However, photolysis in ice and snow will destroy HOOH and form the hydroxyl radical (*OH), which can react with snowpack trace species. Reactions of *OH in snow and ice will affect the composition of both the overlying atmosphere (e.g., by the release of volatile species such as formaldehyde to the boundary layer) and the snow and ice (e.g., by the *OH-mediated destruction of trace organics). To help understand these impacts, we have measured the quantum yield of *OH from the photolysis of HOOH on ice. Our measured quantum yields (Phi(HOOH --> *OH)) are independent of ionic strength, pH, and wavelength, but are dependent upon temperature. This temperature dependence for both solution and ice data is best described by the relationship ln(Phi(HOOH --> *OH)) = -(684 +/- 17)(1/T) + (2.27 +/- 0.064) (where errors represent 1 standard error). The corresponding activation energy (Ea) for HOOH (5.7 kJ mol(-1)) is much smaller than that for nitrate photolysis, indicating that the photochemistry of HOOH is less affected by changes in temperature. Using our measured quantum yields, we calculate that the photolytic lifetimes of HOOH in surface snow grains under midday, summer solstice sunlight are approximately 140 h at representative sites on the Greenland and Antarctic ice sheets. In addition, our calculations reveal that the majority of *OH radicals formed on polar snow grains are from HOOH photolysis, while nitrate photolysis is only a minor contributor. Similarly, HOOH appears to be much more important than nitrate as a photochemical source of *OH on cirrus ice clouds, where reactions of the photochemically formed hydroxyl radical could lead to the release of oxygenated volatile organic compounds to the upper troposphere.
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Affiliation(s)
- Liang Chu
- Atmosphere Science Program, Department of Land, Air, and Water Resources, University of California, One Shields Avenue, Davis, California 95616-8627, USA
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Yang J. Photostationary state deviation–estimated peroxy radicals and their implications for HOxand ozone photochemistry at a remote northern Atlantic coastal site. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd003983] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Affiliation(s)
- Dwayne E Heard
- Department of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
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Cantrell CA, Edwards GD, Stephens S, Mauldin L, Kosciuch E, Zondlo M, Eisele F. Peroxy radical observations using chemical ionization mass spectrometry during TOPSE. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002715] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christopher A. Cantrell
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
| | - G. D. Edwards
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
| | - S. Stephens
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
| | - L. Mauldin
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
| | - E. Kosciuch
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
| | - M. Zondlo
- Atmospheric Chemistry Division National Center for Atmospheric Research Boulder Colorado USA
- Now at Southwest Sciences, Inc., Santa Fe, New Mexico, USA
| | - F. Eisele
- Georgia Institute of Technology Atlanta Georgia USA
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Mauldin RL. Measurements of OH, H2SO4, and MSA during Tropospheric Ozone Production About the Spring Equinox (TOPSE). ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002295] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Mauldin RL. Highlights of OH, H2SO4, and methane sulfonic acid measurements made aboard the NASA P-3B during Transport and Chemical Evolution over the Pacific. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jd003410] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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DiNunno B. An assessment of ozone photochemistry in the central/eastern North Pacific as determined from multiyear airborne field studies. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jd001468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Cantrell CA. Peroxy radical behavior during the Transport and Chemical Evolution over the Pacific (TRACE-P) campaign as measured aboard the NASA P-3B aircraft. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jd003674] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Ren X. Intercomparison of peroxy radical measurements at a rural site using laser-induced fluorescence and Peroxy Radical Chemical Ionization Mass Spectrometer (PerCIMS) techniques. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jd003644] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Creasey DJ. Measurements of OH and HO2concentrations in the Southern Ocean marine boundary layer. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003206] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Raper JL, Kleb MM, Jacob DJ, Davis DD, Newell RE, Fuelberg HE, Bendura RJ, Hoell JM, McNeal RJ. Pacific Exploratory Mission in the Tropical Pacific: PEM-Tropics B, March-April 1999. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900833] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Davis D, Grodzinsky G, Chen G, Crawford J, Eisele F, Mauldin L, Tanner D, Cantrell C, Brune W, Tan D, Faloona I, Ridley B, Montzka D, Walega J, Grahek F, Sandholm S, Sachse G, Vay S, Anderson B, Avery M, Heikes B, Snow J, O'Sullivan D, Shetter R, Lefer B, Blake D, Blake N, Carroll M, Wang Y. Marine latitude/altitude OH distributions: Comparison of Pacific Ocean observations with models. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900141] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fuelberg HE, Newell RE, Westberg DJ, Maloney JC, Hannan JR, Martin BD, Avery MA, Zhu Y. A meteorological overview of the second Pacific Exploratory Mission in the Tropics. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900173] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Olson JR, Crawford JH, Davis DD, Chen G, Avery MA, Barrick JDW, Sachse GW, Vay SA, Sandholm ST, Tan D, Brune WH, Faloona IC, Heikes BG, Shetter RE, Lefer BL, Singh HB, Talbot RW, Blake DR. Seasonal differences in the photochemistry of the South Pacific: A comparison of observations and model results from PEM-Tropics A and B. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900077] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Ravetta F, Jacob DJ, Brune WH, Heikes BG, Anderson BE, Blake DR, Gregory GL, Sachse GW, Sandholm ST, Shetter RE, Singh HB, Talbot RW. Experimental evidence for the importance of convected methylhydroperoxide as a source of hydrogen oxide (HOx) radicals in the tropical upper troposphere. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900009] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang Y, Liu SC, Wine PH, Davis DD, Sandholm ST, Atlas EL, Avery MA, Blake DR, Blake NJ, Brune WH, Heikes BG, Sachse GW, Shetter RE, Singh HB, Talbot RW, Tan D. Factors controlling tropospheric O3, OH, NOxand SO2over the tropical Pacific during PEM-Tropics B. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900084] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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