A5057354551- Atmospheric chemistry and aerosols
- Vehicle emissions and performance
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Cryospheric studies and observations
- Air Quality Monitoring and Forecasting
- Water Quality Monitoring and Analysis
- Advanced Aircraft Design and Technologies
- Winter Sports Injuries and Performance
- Per- and polyfluoroalkyl substances research
- Gas Sensing Nanomaterials and Sensors
- High Altitude and Hypoxia
Environmental Protection Agency
2021-2024
United States Department of Transportation
2023
Eastern Research Group (United States)
2023
Washington State University
2015-2016
Michigan Technological University
2010-2015
The United States Environmental Protection Agency (US EPA) has developed a set of annual North American emissions data for multiple air pollutants across 18 broad source categories 2002 through 2017. sixteen new inventories were using consistent input and methods all years. When method or tool was not available category, estimated by scaling from the EPA's 2017 National Emissions Inventory with factors based on activity and/or control information. datasets are designed to support regional...
The US Environmental Protection Agency (EPA) estimates on-road vehicles emissions using the Motor Vehicle Emission Simulator (MOVES). We developed updated ammonia emission rates for MOVES based on road-side exhaust measurements of light-duty gasoline and heavy-duty diesel vehicles. resulting nationwide vehicle are 1.8, 2.1, 1.6 times higher than MOVES3 calendar years 2010, 2017, 2024, 2035, respectively, primarily due to an increase in NH
Abstract. Mobile sources are responsible for a substantial controllable portion of the reactive organic carbon (ROC) emitted to atmosphere, especially in urban environments United States. We update existing methods calculating mobile source particle and vapor emissions States with over decade laboratory data that parameterize volatility aerosol (OA) potential from on-road vehicles, nonroad engines, aircraft, marine vessels, locomotives. find emission factor information Teflon filters...
The impact of outdoor and indoor pollution sources on air quality in Santiago, Chile was investigated. Toward this end, 16 homes were sampled four sessions. Each session included an site using different unvented space heaters (electric or central heating, compressed natural gas, liquefied petroleum kerosene). Average fine particulate matter (PM2.5) concentrations very high (55.9 microg x m(-3)), a large fraction these particles penetrated indoors. PM2.5 several components (including sulfate,...
Atmospheric nitrogen oxide and dioxide (NO + NO2, together termed as NOX) estimates from annual photochemical simulations for years 2002–2016 are compared to surface network measurements of NOX total gas-phase-oxidized reactive (NOY) evaluate the Community Multiscale Air Quality (CMAQ) modeling system performance by U.S. region, season, time day. In addition, aircraft 2011 Deriving Information on Surface Conditions Column Vertically Resolved Observations Relevant used how emissions, chemical...
Abstract. Mobile sources are responsible for a substantial controllable portion of the reactive organic carbon (ROC) emitted to atmosphere, especially in urban environments United States (U.S.). We update existing methods calculating mobile source particle and vapor emissions U.S. with over decade laboratory data that parameterize volatility aerosol (OA) potential from onroad vehicles, nonroad engines, aircraft, marine vessels, locomotives. find emission factor information teflon filters...