The EPA Mercury and Air Toxics Standards (MATS) dataset provides detailed information on emissions of hazardous air pollutants, specifically mercury and other toxic substances, from power plants in the United States. Established by the U.S. Environmental Protection Agency (EPA) under the Clean Air Act, MATS aims to reduce air pollution and its associated health risks by setting limits on the emissions of mercury, arsenic, acid gases, and other pollutants from coal- and oil-fired power plants. The dataset typically includes metrics such as emission levels, compliance testing results, facility locations, and operational data. It serves as a critical resource for policymakers, researchers, and environmental organizations to assess the effectiveness of pollution control measures, monitor compliance, and evaluate the environmental and public health impacts of power plant emissions. Archived from https://www.epa.gov/stationary-sources-air-pollution/mercury-and-air-toxics-standards This archive contains raw input data for the Public Utility Data Liberation (PUDL) software developed by Catalyst Cooperative. It is organized into Frictionless Data Packages. For additional information about this data and PUDL, see the following resources: The PUDL Repository on GitHub PUDL Documentation Other Catalyst Cooperative data archives