Experiment: Ng Research Group_20190219_naphthalene_Hydroxyl radical_Ammonium sulfate_dry

Experiment

Name: Ng Research Group_20190219_naphthalene_Hydroxyl radical_Ammonium sulfate_dry
Date: 2019-02-19

Organization
Ng Research Group

Chamber
Georgia Tech Environmental Chamber (Near)

Experiment Set
NAPH+OH_Liu

Goals
generate naphthalene SOA for cellular ROS assay

Summary
450 ppb naphthalene injected and use HONO as the source of OH radical

Experiment Details

Categories:

  • Gas phase chemical reaction
  • Condensed-phase chemical reaction
  • Multiphase chemical reaction
  • Aerosol formation
Temperature: 22
Relative Humidity: 3.2
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value: 21347
Seed Concentration Units: particles_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 3.2
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: 4.73e6 (molecules_per_cubic_centimeter)
RO2 Main Fate: NO
RO2 Lifetime: (Seconds)
Pressure:

Data Sets

ID Instrument File  
1683 AMS (Near, mass spec) 20190219_Naphthalene_OH_AMS_MassSpec.csv
2668 GC-FID (near) 20190219_Naphthalene_OH_GC.csv
3661 AMS (Near, time series) 20190219_Naphthalene_OH_AMS.csv
3662 CAPS NO2 monitor (near) 20190219_Naphthalene_OH_NO2_time.csv
3663 O3 monitor (Near) 20190219_Naphthalene_OH_O3_time.csv
3664 Teledyne NOx (near) 20190219_Naphthalene_OH_NO_time.csv
3665 SMPS (near, volume) 20190219_Naphthalene_OH_Volume.csv
3666 SMPS (near, number) 20190219_Naphthalene_OH_Number.csv

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

Experiment Set Details

Name: NAPH+OH_Liu
Time format and units: Eastern time
Description:
Naphthalene+OH to generate naphthalene SOA for cellular ROS assay

Collaborators:

Download

Download this Experiment (100.39 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
naphthalene (931)
  • Aromatic
 450 Parts Per Billion

20190219_Naphthalene_OH_timeline.csv Timeline

Time_UTC Event Description
17:30 started DOS injection , 30 minute injection = 150 ug/m3
18:18 injected VOC (50 ul C6, 40 ul C8, 25 uL C9, 18 uL C10) (fan on 1 min)
18:24 injected 26 Torr (2 L bulb) NO, Fan on 1 min
18:30 Injected 27 Torr MeNO2 ,Fan on 1 min
18:34 started UV cycle
20:06 started flush cycle to clean bag (experiment end)

Citations
Cite this experiment:

Characterizations
Light Flux Characterizations:
(None)
Particle Loss Characterizations:
2019-03-13 (#21)
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: