Post, November 13, 2025 • (U.S. Environmental Protection Agency) Gasoline- and diesel-fueled engines are ubiquitous sources of air pollution in urban environments. They emit both primary particulate matter and precursor gases that react to form secondary particulate matter in the atmosphere. In this work, we use experimentally derived inputs and parameterizations to predict concentrations and...
Environmental Protection Agency
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EPA eGRID — Emissions & Generation Resource Integrated Database
Post, September 29, 2026 • (U.S. Environmental Protections Agency, Catalyst Cooperative) The Emissions & Generation Resource Integrated Database (eGRID) is a comprehensive source of data from EPA's Clean Air Power Sector Programs on the environmental characteristics of almost all electric power generated in the United States. The data includes emissions, emission rates, generation, heat input,...
Gridded EPA U.S. Anthropogenic Methane Greenhouse Gas Inventory (gridded GHGI)
Post, September 29, 2026 • (Environmental Protection Agency, Lawrence Berkeley National Laboratory, Harvard University, Space Research Organisation Netherlands) The gridded EPA U.S. anthropogenic methane greenhouse gas inventory (gridded methane GHGI) includes spatially and temporally resolved (gridded) maps of annual anthropogenic methane emissions (0.1°×0.1°) for the contiguous United States (CONUS). Total gridded methane emissions for each emission source...