Basic Information & Site Map
Our programs reduce emissions from electricity generation to address environmental problems including acid rain, ozone, and fine particle pollution. We track changes in the power sector and comprehensively monitor emissions of sulfur dioxide (SO2), nitrogen oxides (NOX), carbon dioxide (CO2), and mercury from power plants. We also monitor air quality and environmental and ecological conditions to assess progress and provide accountability.
- Learn about the U.S. power sector, its impacts, and how it is evolving.
- Explore EPA’s emission reduction programs and our progress protecting human health and the environment.
- Discover a wealth of public data, as well as tools, interactive maps, graphs, and other resources.
- Access resources that EPA provides for power plants and others interested in emissions monitoring and reporting, compliance requirements, and administrative processes.
Site Map
On this page:
- Related Topics
- U.S. Electric Power Sector Section
- Programs & Progress Section
- Data & Tools Section
- Program Implementation Section
Related Topics
- Acid Rain
- Clean Air Markets Program Data (CAMPD)
- Clean Air Status & Trends Network (CASTNET)
- Combined Heat and Power (CHP) Resource Center
- Electric Power Systems Partnership
- Good Neighbor Plan / Cross-State Air Pollution Rule
- Green Power Markets
- Green Power Partnership
- Emissions & Generation Resource Integrated Database (eGRID)
- Emissions Trading Resources
- Interstate Air Pollution Transport
- Power Sector Modeling
- Clean Air Act Overview
- Climate Change
- Energy and the Environment
- Sulfur Dioxide (SO2)
- Nitrogen Oxides (NOx)
- Carbon Dioxide (CO2)
- Particle Pollution
- Mercury
U.S. Electric Power Sector
- Power Sector Evolution
- Human Health & Environmental Impacts of the Electric Power Sector
- Power Sector Programs
Programs & Progress
- Power Sector Programs – Progress Report
- Power Plant Emissions Reductions
- Latest Emission Comparisons & Pollution Controls
- Power Plants and Neighboring Communities
Data & Tools
Program Implementation
Business Center
Allowance Markets
- Buying Allowances
- Brokers
- Acid Rain Program SO2 Allowance Auction
- SO2 Allowance Auction Results (1993-2021)
Emissions Monitoring and Reporting
Emissions Monitoring Resources
- Emissions Collection and Monitoring Plan System (ECMPS)
- Virtual and Field Audit Resources
- Part 75 Policy and Technical Resources
- Monitoring Insights and Analyses
- Monitoring Plan Viewer
- Emissions Monitoring and Regulatory Actions
- Protocol Gas Verification Program