ICARUS Chamber Experiment: Nguyen Group_20220520_Nitrogen Dioxide/Ammonium Sulfate/Ozone/Hydrogen Peroxide/alpha-Pinene_Nitrate radical_Ammonium sulfate

Goals: To quantify SOA yield and gas-phase product yields (particularly of C10 nitrooxy-hydroperoxide and other organonitrates) from humid nighttime RO2+HO2-dominated NO3-initiated chemistry of a-pinene.

Summary: The chamber was humidified, after which H2O2, NO2, and O3 were injected in the chamber and allowed to equilibrate, forming NO3 and HO2. Ammonium sulfate seed particles were injected. Then a-pinene was injected and decayed by simultaneous reaction with ozone and NO3. Gas phase organics were monitored by CF3O- CIMS (units: normalized counts), particle formation was monitored by SMPS, and RH/T/O3/NOx were monitored throughout.

O3/NOx data sometimes require post-correction not applied here, including subtraction of an ozone interference from H2O2 (1 ppm H2O2 is detected as about 12 ppb ozone) and correction for an in-line HEPA filter (see timeline for applicable timing) that scrubs about 10% of NO2 and 45% of ozone.

CIMS was periodically stopped during this experiment to retune.

Organization: Nguyen Group Lab Affiliation: UC Davis Chamber: Tran's big bag of air

Experiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Nitrate radical Reactants: Nitrogen Dioxide, Ammonium Sulfate, Ozone, Hydrogen Peroxide, alpha-Pinene Reaction Type: Dark oxidation Relative Humidity: 66 Temperature: 22 Seed Name: Ammonium sulfate Pressure: approx 1 atm

To Access Resource:

Questions? Email Resource Support Contact:

  • Bates, Kelvin
    kelvinhbates@gmail.com
    Nguyen Group

Temporal Range

  • Begin:  2022-05-20
    End:  2022-05-20

Keywords

Resource Type dataset
Temporal Range Begin 2022-05-20
Temporal Range End 2022-05-20
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 N/A
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 Bates, Kelvin
Resource Support Email kelvinhbates@gmail.com
Resource Support Organization Nguyen Group
Distributor N/A
Metadata Contact Name GDEX Curator
Metadata Contact Email gdex@ucar.edu
Metadata Contact Organization UCAR/NCAR - GDEX

Author Nguyen, Tran
Publisher ICARUS Community
Publication Date 2023-08-23
Digital Object Identifier (DOI) https://doi.org/10.5065/tehv-st82
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2023-08-23T02:30:01-06:00
Metadata Record Identifier edu.ucar.gdex::e6fd355f-104d-474e-bd35-5f104db74e9e
Metadata Language eng; USA
Suggested Citation Nguyen, Tran. (2023). ICARUS Chamber Experiment: Nguyen Group_20220520_Nitrogen Dioxide/Ammonium Sulfate/Ozone/Hydrogen Peroxide/alpha-Pinene_Nitrate radical_Ammonium sulfate. ICARUS Community. https://doi.org/10.5065/tehv-st82. Accessed 29 November 2023.

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