Jump to main content or area navigation.

Contact Us

Clean Air Markets

Progress Report

Index of Graphics

Please select any of the following thumbails to view the specific chart or map.

Program Basics Figures

Program History
History of ARP, NBP, CAIR and CSAPR
CSAPR States Map
Map of Cross-State Air Pollution Rule Implementation for 2015

Affected Units Figures

Affected Units
Affected Units in CSAPR and ARP Programs, 2015
Table of Affected Units
Table of Affected Units in the CSAPR and ARP Programs, 2015

SO₂ Trends

SO₂ Emission Trends
SO₂ Emissions from CSAPR and ARP Sources, 1980–2015
SO₂ State-by-State
State-by-State SO₂ Emissions for CSAPR and ARP Sources, 1990–2015
SO₂ Emissions and Heat Input
Comparison of SO₂ Emissions and Heat Input for CSAPR and ARP Sources, 2000–2015

Annual NOₓ Trends

NOₓ Annual Program Emission Trends
Annual NOₓ Emissions from CSAPR and ARP Sources, 1990–2015
NOₓ Annual Program State-by-State
State-by-State Annual NOₓ Emissions from CSAPR and ARP Sources, 1990-2015
NOₓ Annual Program Emissions and Heat Input
Comparison of Annual NOₓ Emissions and Heat Input for CSAPR and ARP Sources, 2000–2015

CSAPR Ozone Season NOₓ Trends

NOₓ Ozone Season Emission Trends
Ozone Season NOₓ Emissions from CSAPR Sources, 2000-2015
NOₓ Ozone Season State-by-State
State-by-State Ozone Season NOₓ Emissions from CSAPR Sources, 2000–2015
NOₓ Ozone Season Emissions and Heat Input
Comparison of Ozone Season NOₓ Emissions and Heat Input for CSAPR Sources, 2000–2015

Emission Controls and Monitoring Figures

SO₂ Controls
SO₂ Emissions Controls in the ARP and CSAPR SO₂ Program in 2015
CSAPR SO₂ Program Monitoring Methodology
CSAPR SO₂ Program Monitoring Methodology in 2015
NOₓ Annual Program Controls
NOₓ Emissions Controls in CSAPR NOₓ Annual Program in 2015
CSAPR NOₓ Annual Program Monitoring Methodology
CSAPR NOₓ Annual Program Monitoring Methodology in 2015
NOₓ Ozone Season Controls
NOₓ Emissions Controls in CSAPR NOₓ Ozone Season Program in 2015
CSAPR NOₓ Ozone Season Program Monitoring Methodology
CSAPR NOₓ Ozone Season Program Monitoring Methodology in 2015

Program Compliance Tables

SO₂ Compliance Summary
Acid Rain Program SO₂ Program Allowance Reconciliation Summary, 2015
Annual SO₂ Group 1 Allowance Summary
Cross-State Air Pollution Rule SO₂ Annual Group 1 Program Allowance Reconciliation Summary, 2015
Annual SO₂ Group 2 Allowance Summary
Cross-State Air Pollution Rule SO₂ Annual Group 2 Program Allowance Reconciliation Summary, 2015
Annual NOₓ Allowance Summary
Cross-State Air Pollution Rule NOₓ Annual Program Allowance Reconciliation Summary, 2015
NOₓ Ozone Season Allowance Summary
Cross-State Air Pollution Rule NOₓ Ozone Season Program Allowance Reconciliation Summary, 2015

Market Activity Figures

Allowance Transfers
2015 Allowance Transfers under CSAPR and ARP
Allowance Spot Price
Allowance Spot Price (Prompt Vintage), January – December 2015

Sulfur Dioxide and Nitrogen Oxides Trends Figures

National SO₂ Air Quality
National SO₂ Air Quality Trend, 1980-2015
Regional Changes in Air Quality
Regional Changes in Air Quality

Ozone Figures

Percent Change Ozone Season Map
Percent Change in the Highest Values (99ᵗʰ percentile) of 1-hour Ozone Concentrations during the Ozone Season, 2000–2002 versus 2013-2015
Trend in Rural Ozone
Shifts in 8-hour Seasonal Rural Ozone Concentrations in the CSAPR NOₓ Ozone Season Region, 1990–2015
Changes in 8-Hour Ozone Concentrations
Seasonal Average of 8-Hour Ozone Concentrations in CSAPR States, Unadjusted and Adjusted for Weather
Changes in 1997 Ozone Nonattainment Areas
Changes in 1997 Ozone NAAQS Nonattainment Areas in the CSAPR Region, 2001–2003 (Original Designations) versus 2013-2015
Changes in 2008 Ozone Nonattainment Areas
Changes in 2008 Ozone NAAQS Nonattainment Areas, 2008–2010 (Original Designations) versus 2013-2015

Particulate Matter Figures

PM₂.₅ Seasonal Trends
PM₂.₅ Seasonal Trends, 2000-2015
Changes in PM Nonattainment Areas
Changes in PM₂.₅ NAAQS Nonattainment Areas in the CSAPR Region, 2001–2003 (Original Designations) versus 2013–2015

Acid Deposition Figures

Wet Sulfate Deposition Map
Three-Year Wet Sulfate Deposition
Wet Inorganic Nitrogen Deposition Map
Three-Year Wet Inorganic Nitrogen Deposition
Regional Trends in Deposition
Regional Changes in Deposition

Ecosystem Health Figures

Monitoring Program Site Map
Long-term Monitoring Program Sites and Trends, 1990–2015
Regional Trends in Water Quality
Regional Trends in Sulfate, Nitrate, ANC, and Base Cations at Long-term Monitoring Sites, 1990–2015
Biomass Loss Due to Ozone Exposure
Biomass Loss Due to Ozone Exposure, 2000-2002 versus 2013-2015

Critical Loads Analysis Figures

Critical Load Exceedances Map
Lake and Stream Exceedances of Estimated Critical Loads for Total Nitrogen and Sulfur Deposition, 2000–2002 versus 2013–2015
Critical Load Exceedances by Region
Critical Load Exceedances by Region, 2000-2002 versus 2013-2015

Top of Page

Jump to main content.