Experiment: Ng Research Group_20160331_ISOPRENE_Hydroxyl radical_1:2 MgSO4/H2SO4_dry

Experiment

Name: Ng Research Group_20160331_ISOPRENE_Hydroxyl radical_1:2 MgSO4/H2SO4_dry
Date: 2016-03-31

Organization
Ng Research Group

Chamber
Georgia Tech Environmental Chamber (Near)

Experiment Set
ISO+OH_Chen

Goals
Generate SOA for health study.

Summary
ISO+H2O2, photooxidation under dry condition with acidic seed.

Experiment Details

Categories:

  • Aerosol formation
Temperature: 24-27
Relative Humidity: 7-12
Seeded Experiment: Yes
Type of Seed: 1:2 MgSO4/H2SO4
Initial Seed Concentration Value: 21735
Seed Concentration Units: particles_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 7-12
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: ~1e6 (molecules_per_cubic_centimeter)
RO2 Main Fate: HO2
RO2 Lifetime: (Seconds)
Pressure:

Data Sets

ID Instrument File  
1703 AMS (Near, mass spec) 20160331_ISO_dry_acidicseed_AMS_MassSpec.csv
2720 SMPS (near, number) 20160331_ISO_dry_acidicseed_SMPS_Number.csv
2721 SMPS (near, volume) 20160331_ISO_dry_acidicseed_SMPS_Volume.csv
3686 AMS (Near, time series) 20160331_ISO_dry_acidicseed_AMS_time.csv

Data Set plots
Choose a file: Choose the X-Axis:

Experiment Set Details

Name: ISO+OH_Chen
Time format and units: Eastern time
Description:
Isoprene photooxidation under low-NO & high-NO, neutral and acidic seed conditions

Collaborators:

Download

Download this Experiment (78.89 KB)

Contacts

Principal investigator:

Nga (Sally) Lee Ng
E-mail: ng@chbe.gatech.edu
OrcID: 0000-0001-8460-4765

Data Manager:

Taekyu Joo
Phone: (404) 385-2149
E-mail: tjoo6@gatech.edu

Reactant

Reactant Compound type Concentration Concentration units
ISOPRENE (6557)
  • Alkene
 97 Parts Per Billion

20160331_ISO_dry_acidicseed_TimeLine.csv Timeline

Time (America/ET) Action
11:41 SMPS on
11:41 AMS on filter
12:15 AMS on chamber
14:23 Seed injection starts
14:43 Seed injection ends
14:56 VOC injection starts
15:06 VOC injection ends
15:07 H2O2 injection starts
15:25 H2O2 injection ends
15:25 UV on
17:47 Filter starts
19:25 Filter ends
19:28 AMS/SMPS off

Citations
Cite this experiment: Publications associated with this experiment:

Characterizations
Light Flux Characterizations:
(None)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)

Chamber Details

Name: Georgia Tech Environmental Chamber (Near)
Volume in cubic meters: 12.6
Shape:
Surface area in cubic meters: 32.48865
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness:
Replacement date: 2017-02-07
Replacement frequency: As needed
Cleaning method: Flushing with air Flushing with air with UV lights on
o3 background: 3
nox background: 1
Particle background in micrograms per cubic meter:
Air filtration method: Pure air generator with membrane filter dryer
Mixing method: 0
Mixing method material:
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 4
Temparature range (max degrees celcius): 40
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 2
Relative humidity range (max percent): 70
Particle experiment capability: 1
Lights: Yes
Light source type(s): UVA Black Lamps, Natural Sunlight
Supplemental information:
Additional Notes: