ICARUS Chamber Experiment: 2014 FIXCIT Study_20140126_METHACROLEIN/nitrogen dioxide/methyl nitrite/methacrylic acid epoxide_Hydroxyl radical_Ammonium sulfate_Methacrolein + OH, high NO, dry, then humidify and add (NH4)2SO4 seed at end

Goals: Understand the gas-phase products of MPAN + OH. Understand what contributes to SOA from MPAN + OH.

Summary: Within an hour of lights on, methacrolein was completely oxidized away. Significant amounts of organic aerosol were reported by AMS past 30% oxidation of methacrolein. TD-LIF reported increasing signal on their PN channel, peaking around lights off. Upon lights off, GHTOS reported significant OH interference, so the addition of NO was held off for 20 minutes. NO addition led to an excess of roughly 90ppb of NO and successfully titrated out the ozone. Wall loss was monitored for approximately an hour. MAE standard (courtesy of the Surrat group at UNC-Chapel Hill) was then injected into the chamber, at approximately ~10ppb. Wall loss was monitored again for another 90 minutes. At this point, humidified air was added to the bag to intentionally cause wall loss of MAE. Wall loss did increase after addition of humidity. Wet ammonium sulfate seed aerosol was then injected into the bag and no extra wall loss was noted from MAE.

Organization: 2014 FIXCIT Study Lab Affiliation: California Institute of Technology Chamber: Seinfeld chambers

Experiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Hydroxyl radical Reactants: METHACROLEIN, nitrogen dioxide, methyl nitrite, methacrylic acid epoxide Reaction Type: Photooxidation Relative Humidity: 5 Temperature: 26 Seed Name: Ammonium sulfate Pressure: 750

To Access Resource:

Questions? Email Resource Support Contact:

  • Nguyen, Tran
    tbn@ucdavis.edu
    2014 FIXCIT Study

Temporal Range

  • Begin:  2014-01-26
    End:  2014-01-26

Keywords

Resource Type dataset
Temporal Range Begin 2014-01-26
Temporal Range End 2014-01-26
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links

Publication : Overview of the Focused Isoprene eXperiment at the California Institute of Technology (FIXCIT): mechanistic chamber studies on the oxidation of biogenic compounds

Publication : Mechanism of the hydroxyl radical oxidation of methacryloyl peroxynitrate (MPAN) and its pathway toward secondary organic aerosol formation in the atmosphere

Publication : Can Isoprene Oxidation Explain High Concentrations of Atmospheric Formic and Acetic Acid over Forests?
Additional Information N/A
Resource Format Compressed Archive File (application/zip)
Standardized Resource Format Archive
Asset Size N/A
Legal Constraints

Creative Commons Attribution 4.0 International License.
Access Constraints These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.
Software Implementation Language N/A

Resource Support Name Nguyen, Tran
Resource Support Email tbn@ucdavis.edu
Resource Support Organization 2014 FIXCIT Study
Distributor N/A
Metadata Contact Name GDEX Curator
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization UCAR/NCAR - GDEX

Author Wennberg, Paul
Seinfeld, John
Crounse, John
Nguyen, Tran
Publisher ICARUS Community
Publication Date 2021-10-12
Digital Object Identifier (DOI) https://doi.org/10.5065/ywwd-6s81
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2022-01-27T09:12:22-07:00
Metadata Record Identifier edu.ucar.gdex::82a42491-83e0-4a31-ac77-63bfac0910e8
Metadata Language eng; USA
Suggested Citation Wennberg, Paul, Seinfeld, John, Crounse, John, Nguyen, Tran. (2021). ICARUS Chamber Experiment: 2014 FIXCIT Study_20140126_METHACROLEIN/nitrogen dioxide/methyl nitrite/methacrylic acid epoxide_Hydroxyl radical_Ammonium sulfate_Methacrolein + OH, high NO, dry, then humidify and add (NH4)2SO4 seed at end. ICARUS Community. https://doi.org/10.5065/ywwd-6s81. Accessed 18 April 2024.

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