Faculty & Labs
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- Graduate Programs
- Areas of Research
- Air Pollution and Health - Generation of reactive oxygen species by ambient and laboratory particles
- Urban and Regional Smog - : Organic and inorganic chemistry in aerosol particles and cloud/fog drops
- Global Climate Change - Polar snow chemistry and its impacts on ice core records; Effects of particle chemistry on particle properties and gas-phase composition
- Graduate Programs
- Areas of Research
- Transportation - In-use motor vehicle emissions and their effect on air pollution
- Urban and Regional Smog - Source/receptor modeling of particles and gases; interbasin transport of air pollutants throughout the United States; dry deposition of acidic gases and particles
- Agricultural Emissions - Sources and generation mechanisms of PM10 fugitive dust
- Global Climate Change - Aerosol effects on radiation balance, spatial and temporal distribution of regional aerosols on continental scales
- Visibility Degradation - Visibility/particle relationships in the atmosphere
- Graduate Programs
- Areas of Research
- Global Climate Change - Chemical mechanisms of how reactive snow emissions interact with atmospheres and thus affect Global Change.
- Graduate Programs
- Areas of Research
- Urban and Regional Smog - Laboratory measurements of physical properties of atmospheric particulate matter and their chemical evolution.
- Global Climate Change - Optical properties (absorption, scattering) of particles and how they are affected by chemical and physical transformations in the atmosphere
- Visibility Degradation - Field measurements of optical properties of particles in urban and rural environments.
- Graduate Programs
- Areas of Research
- Urban and Regional Smog - Numerical modeling of long-range transport and the source-receptor relationship.
- Global Climate Change - Regional climate changes in temperature, rainfall distribution, and the frequency of cyclones and anticyclones.
- Graduate Programs
- Areas of Research
- Global Climate Change - Effects of climate change politics on how region, locality, and globality are imagined and politicized.
- Graduate Programs
- Areas of Research
- Urban and Regional Smog - Modeling the chemical thermodynamics of gas/aerosol partitioning in systems containing both inorganic and organic compounds. Experimental investigations of single particle properties.
- Global Climate Change - Aerosol water content, aerosol/cloud interactions.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Particle sampling and characterization for in vitro and in vivo exposure studies.
- Transportation - Characterization of particles emitted from transportation sources including aircraft, automotive, and railway.
- Urban and Regional Smog - Sampling and analysis of ambient particulate in support of source apportionment studies and atmospheric pollution transport.
- Agricultural Emissions - Particle emission measurement from agricultural sources including dairies and other Confined Animal Facility Operations (CAFO) sites.
- Global Climate Change - Quantification of long-range particle transport and transformation. Ground-truth observations for climate model calibration related to long-range dust transport.
- Indoor Air Quality - Quality assurance of air sampling protocols, particle and gaseous sampling and analysis of indoor pollutants related to human health impacts.
- Visibility Degradation - Ambient sampling and analysis of particles in Class 1 visual areas including National Parks and Monuments. Study of particle pollution source and concentration related to visibility reduction in US National Parks.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Chemical characterization of potentially toxic or carcinogenic particulate matter, new technique development to characterize organic functional groups using FTIR and characterize elements using high-volume sampler and ICP-MS, radical generation due to par
- Urban and Regional Smog - Laboratory studies of the formation of secondary organic aerosols.
- Global Climate Change - Atmospheric transformation of organic particles and their impact on regional climate.
- Visibility Degradation - Work with the IMPROVE group at UCDavis which measures the concentration and composition of visibility reducing particles in all the National Parks in the U.S.
- Graduate Programs
- Areas of Research
- Global Climate Change - Fine-resolution modeling of global and regional climate
- Graduate Programs
- Areas of Research
- Transportation - Transportation-related air pollution, including toxics, particulate matter, carbon monoxide, conformity, transportation control measures, inspection and maintenance, near-road hot-spots, and construction emissions.
- Urban and Regional Smog - State implementation planning (SIP) including control policy assessment, emissions inventories, outreach and training.
- Global Climate Change - Effectiveness of transportation-based controls, relationship between climate change controls and regional planning.
- Graduate Programs
- Areas of Research
- Transportation - Coastal ship traffic emissions.
- Urban and Regional Smog - Coastal air quality measurements.
- Agricultural Emissions - Forest air quality studies: oxidation of biogenic hydrocarbon emissions.
- Global Climate Change - Global sulfur oxidation studies.
- Graduate Programs
- Areas of Research
- Transportation - Environmental impacts of bioenergy including biofuels.
- Agricultural Emissions - Emission factors from agricultural burning; emission simulators for human exposure experiments.
- Global Climate Change - Greenhouse gas emissions from biomass power systems, biofuel production, and energy-integrated waste management.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Characterization and source apportionment of airborne particles in fine and ultrafine size fractions.
- Transportation - Measurement of particle size and composition in tailpipe emissions.
- Urban and Regional Smog - Source-oriented airshed modeling for California and the eastern U.S.
- Agricultural Emissions - Ozone formation potential of agricultural emissions sources including dairy cows.
- Global Climate Change - Impact of climate change on air pollution including feedbacks on local meteorology.
- Visibility Degradation - Source contributions to visibility reduction in California.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Quantifying the effects of air quality on health.
- Transportation - Air pollution and climate change implications of transportation
- Urban and Regional Smog - Trends in ozone smog and effects of regulation and climate change on ozone smog.
- Agricultural Emissions - Effects of regulation on agricultural emissions.
- Global Climate Change - Economics of global climate change; effects of climate change on air quality.
- Graduate Programs
- Areas of Research
- Global Climate Change - Large-scale climate response to natural and human-caused changes in atmospheric composition.
- Graduate Programs
- Areas of Research
- Transportation - Mobile source emissions inventories.
- Global Climate Change - Transportation-land use and energy consumption; Transportation-land use and impacts on mobile source inventories.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Thermoregulation and thermal comfort of biota.
- Transportation - Turbulent transport of trace gases and particulates; modeling and measurements
- Urban and Regional Smog - Turbulent transport of trace gases and particulates; regional and smaller scale modeling and measurements.
- Agricultural Emissions - Aerosol physics; entrainment and deposition of aerosols.
- Global Climate Change - Turbulent transport of trace gases and particulates; carbon dioxide and other trace gas exchange from ecosystems; regional and smaller scale modeling and measurements.
- Indoor Air Quality - Fiber aerosol concentrations; bioaerosol concentrations (indoor).
- Graduate Programs
- Areas of Research
- Global Climate Change - Climate change effects on ecosystem evapotranspiration and the probability and risk of extreme events.
- Graduate Programs
- Areas of Research
- Transportation - Vehicle emissions, alternative fuels, policy analysis.
- Agricultural Emissions - Climate policy.
- Global Climate Change - Analysis of transportation emissions, evaluation of policy instruments.
- Graduate Programs
- Areas of Research
- Urban and Regional Smog - Regional scale modeling of aerosols; diagnostic studies of regional scale observations of aerosols.
- Global Climate Change - Diagnostic studies of modeled global aerosol properties.
- Visibility Degradation - Regional scale modeling
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Particle deposition in airways, how this deposition affects airway development in children, and the particle toxicity.
- Transportation - Dynamics of particles emitted from vehicles and near roadways.
- Urban and Regional Smog - Mathematical modeling of particle dynamics in the urban and regional atmosphere and new instruments for measuring particle properties.
- Global Climate Change - New particle formation in the atmosphere, aerosol-cloud interactions and turbulent coagulation of cloud droplets and crystals.
- Graduate Programs
- Areas of Research
- Air Pollution and Health - Exposure assessment, and the effects of measurement error on epidemiological analysis.
- Transportation - Evaluation of potential chemical signatures for emissions.
- Urban and Regional Smog - Characterization of atmospheric transport and transformation; attribution of particulate matter to sources; characterization of measurement quality.
- Global Climate Change - Radiative effects and remote sensing of particles.
- Graduate Programs
- Areas of Research
- Urban and Regional Smog - Measurements of air pollutions in mega-cities. Instrumentation for particle measurements.
- Agricultural Emissions - Emissions from animals and waste.
- Global Climate Change - Green houses gases. Stratospheric ozone changes. New particle formation.