Basic Information & Site Map
EPA regulates air pollution from power plants that contributes to environmental problems such as acid rain, ozone and particle pollution. EPA implements regulatory programs to achieve these environmental improvements, including the Acid Rain Program, the Cross-State Air Pollution Rule, and the Mercury and Air Toxics Standards.
To evaluate these programs, EPA monitors emissions from power plants of sulfur dioxide (SO2), nitrogen oxides (NOx), and carbon dioxide (CO2). EPA also monitors and regulates air toxics including mercury, arsenic, hydrochloric acid, and hydrofluoric acid emissions from power plants through the Mercury and Air Toxics Standards.
EPA also monitors air quality and environmental and ecological conditions through its monitoring networks, including the Clean Air Status and Trends Network (CASTNET) and the Long Term Monitoring (LTM) network. This monitoring helps assess trends in air and water quality, atmospheric deposition, and ecological effects resulting from changes in air pollution.
Quickly access data through our Data Resources page.
Learn more about the results of these programs in the Progress Report.
Browse our Frequent Questions page for answers to common questions.
Site Map
On this page:
Related Topics
- Acid Rain
- CASTNET
- Surface Water Monitoring (LTM/TIME)
- Cross-State Air Pollution Rule
- eGRID
- Emissions Trading Resources
- Interstate Air Pollution Transport
- Climate Change
- Mercury
- Sulfur Dioxide (SO2)
- Nitrogen Oxides (NOx)
- Carbon Dioxide (CO2)
- Particle Pollution
- Mercury
Programs
- Texas SO2 Trading Program
- NOX Budget Trading Program
- Ozone Transport Commission NOX Budget Program
- U.S. - Canada Air Quality Agreement
Progress
- Power Sector Programs – Progress Reports
- Power Plants and Neighboring Communities
- Power Plant Emission Trends
- Facility Level Comparisons
- Power Plant Data Viewer
Doing Business With CAMD
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)
- Field Audit Manual
- What is Part 75?
- Emissions Monitoring and Regulatory Actions
- Protocol Gas Verification Program / Air Emission Testing Body
FAQs for Industry, State, Federal Users
FAQs for Industry, State, Federal Users
- CAMD Business System (CBS) FAQs
- Allowances FAQs
- Acid Rain Program SO2 Allowance Auction FAQs
- Emissions Monitoring and Reporting FAQs
- EPA and State Users Access to CBS and ECMPS FAQs
- CAMD's Power Sector Emissions Data FAQs
Data Resources
- Power Sector Emissions Data
- Summary Data
- Allowance Data
- Facility Attributes
- Environmental Monitoring
- Power Sector Modeling
Power Sector Modeling
- NEEDs v6
- EPA's Power Sector Modeling Platform v6 using IPM January 2020 Reference Case
- Retrofit Cost Analyser
- Contact Form
Power Sector Modeling Regulatory Applications
- Final Revised CSAPR Update Rule
- Proposed Revised CSAPR Update Rule
- Final ACE Rule
- Proposed ACE Rule
- Final CSAPR Close-Out
- Proposed CSAPR Close-Out
- Notice of Data Availability: Preliminary Interstate Ozone Transport Modeling Data for the 2015 Ozone NAAQS
- The Cross-State Air Pollution Rule Update
- Previous Power Sector Modeling Regulatory Applications