Title:

ICARUS Chamber Experiment: Nguyen Group_20190611_ALPHA-PINENE/OZONE/10102-44-0/hydrogen peroxide_Nitrate radical_Ammonium sulfate_150ugm3_seed


Description:

Goals:
To quantify the nitrooxy-hydroperoxide yield and the SOA yield from nighttime RO2+HO2-dominated NO3-initiated chemistry of a-pinene by adding H2O2 + ozone + NO2 to the chamber. Part of a series of varying initial seed particle surface area to see how that affects SOA formation.

Summary:
H2O2, NO2, and O3 were injected in the chamber and allowed to equilibrate, forming NO3 (and some N2O5) and probably HO2. Ammonium sulfate seed particles were injected. Then a-pinene was injected and decayed by simultaneous reaction with ozone and NO3. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS. A filter was collected for later offline analysis.

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: ALPHA-PINENE, OZONE, 10102-44-0, hydrogen peroxide
Reaction Type: Dark oxidation
Relative Humidity: 5
Temperature: 22
Seed Name: Ammonium sulfate
Pressure: 755 Torr


Metadata URL:

https://gdex.ucar.edu/dataset/id/8a8f2765-dd6a-48a8-b94a-e8f1667586a4.html