ICARUS Chamber Experiment: Nguyen Group_20220629_Camphene/Ammonium Sulfate/Ozone/Hydrogen Peroxide_Ozone_Ammonium sulfate

Goals: To quantify SOA yield and gas-phase product yields from humid ozonolysis of camphene, which will serve as a "control" experiment to subtract the ozonolysis contribution to the nighttime chemistry of camphene as measured in the experiment on 6/24/22. Summary: The chamber was humidified, after which H2O2, and O3 were injected in the chamber and allowed to equilibrate. Ammonium sulfate seed particles were injected. Then camphene was injected and decayed by reaction with ozone (plus some contribution from OH). 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. Organization: Nguyen Group Lab Affiliation: UC Davis Chamber: Tran's big bag of air Experiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Ozone Reactants: Camphene, Ammonium Sulfate, Ozone, Hydrogen Peroxide Reaction Type: Dark oxidation Relative Humidity: 62 Temperature: 22 Seed Name: Ammonium sulfate Pressure: approximate 1 atm

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Temporal Range

  • Begin:  2022-06-29
    End:  2022-06-29

Keywords

Resource Type dataset
Temporal Range Begin 2022-06-29
Temporal Range End 2022-06-29
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

Related Resource #1 : Icarus Dataset at UC-Davis
Additional Information N/A
Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 149.102 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author Nguyen, Tran B.
Publisher NSF National Center for Atmospheric Research
Publication Date 2023-03-07
Digital Object Identifier (DOI) https://doi.org/10.5065/bds1-n169
Alternate Identifier d789249
Resource Version N/A
Topic Category environment
Progress completed
Metadata Date 2025-10-09T01:37:36Z
Metadata Record Identifier edu.ucar.gdex::d789249
Metadata Language eng; USA
Suggested Citation Nguyen, Tran B.. (2023). ICARUS Chamber Experiment: Nguyen Group_20220629_Camphene/Ammonium Sulfate/Ozone/Hydrogen Peroxide_Ozone_Ammonium sulfate. NSF National Center for Atmospheric Research. https://doi.org/10.5065/bds1-n169. Accessed 12 October 2025.

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