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Clean Air Markets

Clean Air Markets - Emissions Tracking Highlights


EPA regularly posts updates of quarterly sulfur dioxide (SO2) and nitrogen oxides (NOx) emissions data from coal-fired power plants subject to the Acid Rain Program (ARP), the Clean Air Interstate Rule (CAIR), and/or the Cross-State Air Pollution Rule (CSAPR) to make it easy for the public to track changes in emissions from these sources.  All of the data presented here are also available in Air Market Program Data (AMPD). Data show that while a few facilities are emitting more SO2 and/or NOx, or are emitting SO2 and/or NOx at a greater rate, overall emissions are decreasing.

Annual Data and Long Term Data

The data presented here compare emissions, emission rates, and heat input from coal-fired power plant units in the ARP, CAIR and CSAPR. These files compare annual emission data from 2016 with 2017 and longer term data at the facility level. The data presented here are final data for 2016 and preliminary data for 2017.

Interactive Motion Charts:

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Quarterly Data: 2016 vs. 2017 (Quarters 1 to 4)

The data presented here compare emissions, emission rates, and heat input from coal-fired power plant units in the ARP and CSAPR. These files compare quarterly emission data from 2016 with data for the same quarter from 2017. The data presented here are final data for 2016 and preliminary data for 2017 that are currently under review.

Table of Emissions, Emission Rates, Heat Input 2016 vs. 2017(1 pg, 794 K)

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Coal-fired Characteristics and Controls: 2017

The data presented here provide emissions, heat input, capacity, on-line year, emission controls, program applicability, addresses, and additional identifying information for coal-fired power plant units. The data presented here are preliminary data for 2017 that are currently under review.

The data show the percent of coal-fired units, generating capacity, and generation with advanced emission controls.

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Changes in Control Technologies at Coal-Fired Units: 2000-2016

A map showing the locations where particular control technologies have been installed between 2000 to 2014, plus what EPA anticipates will be installed in 2015.The following figures display where particular control technologies have been installed between 2000 and 2016  based on the information obtained from major company contacts and industry sources.

The data show that more and more coal-fired units are installing advanced controls, such as SCRs and scrubbers, which are dramatically reducing pollution across the country.

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