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Organic Aerosol Composition in Queretaro, Mexico
Funding: UC MexUS; Collaboration with Prof. D. Salcedo
Atmospheric Chemistry of Methylated Selenium and Sulfur species
Funding: NSF; Collaboration with Prof. D. Collins and Y-H. Lin
Road Dust Measurements in Southern California
Funding: CalTrans; Collaboration with Prof. V. Venkatram and Prof. Hopkins
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Atmospheric Science and Chemistry mEasurement NeTwork (ASCENT)
Funding: NSF; Collaboration with Prof. N. Ng, A. Russell and Dr. A. Dillner
Funding: NSF; Collaboration with Prof. N. Ng, A. Russell and Dr. A. Dillner
- First fast, continuous, longterm network for aerosol composition and size distribution measurements
- Includes 12 sites at urban, suburban, and remote locations in the US
Measurements of Secondary Aerosol Formation in California
Funding: CARB; Collaboration with Prof. D. Collins and C. Ivey
Funding: CARB; Collaboration with Prof. D. Collins and C. Ivey
- 4-phase measurements in EJ communities of Southern and Central California
- Investigating ambient and perturbed- ambient formation of secondary aerosols using CAGE chambers and APPA flow reactors
SOA Formation from Oxidation of Heterocyclic VOCs
Funding: NSF; Collaboration with Prof. Y.-H. Lin and H. Zhang
Funding: NSF; Collaboration with Prof. Y.-H. Lin and H. Zhang
- Nighttime SOA formation and light absorption properties
- Influence of photochemical aging on SOA absorption
Aerosol Measurements in Long Beach
Funding: South Coast- AQMD
Funding: South Coast- AQMD
- Community-based air quality measurements as part of AB 617
- Chemical composition and size distribution measurements of aerosols
- Source apportionment
Smog Chamber Oxidation Experiments
Funding: NSF
Funding: NSF
- Smog chamber generation of secondary organic aerosol (SOA) from various precursors and oxidants
- Linking SOA composition and optical properties
- Investigating brown carbon (BrC) formation
Aerosol Sampling in Imperial Valley
Funding: UC Agriculture and Natural Resources, USGS, USDA, UCR RED
Phase 1:
Funding: UC Agriculture and Natural Resources, USGS, USDA, UCR RED
Phase 1:
- Size-dependent aerosol filter sample collection at Salton City and Bombay Beach
- Trace metal content of aerosols, as well as arid soil and playa around Salton Sea
- Source characterization of PM10
- Year-long passive aerosol sample collection at 5 locations around Salton Sea/Imperial Valley
- Trace metal and ionic composition
- Temporal and spatial distribution of playa emissions
FRAPPE Field Project
Funding: Colorado Department of Public Health and Environment, NSF
Funding: Colorado Department of Public Health and Environment, NSF
- Online aerosol composition and optical extinction measurements on board the NSF-C130 aircraft
- Summertime aerosol sources and impacts in the Colorado Front Range
Engine Exhaust Emission Testing
Collaboration with UCR CE-CERT Scientists
Collaboration with UCR CE-CERT Scientists
- Optical properties of primary aerosols from PFI/GDI vehicles
- Aerosol absorption and scattering in the exhaust of a small marine engine
- Composition of SOA generated in flow tube oxidation of vehicle exhaust
