Evaluating Ozone Control Programs in the Eastern United States: Focus on the NOx Budget Trading Program, 2004 State and Local Information for EPA Region 3 Delaware Maryland Pennsylvania Virginia Washington, DC West Virginia U.S. Environmental Protection Agency Office of Air and Radiation Office of Air Quality Planning and Standards October 2005 ------- Delaware Emissions State total emissions of NOx and VOCs have decreased from 1997 to 2004. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 9,679 5,595 5,069 Mobile On-Road 11,563 9,786 8,993 Other 8,606 9,583 8,289 VOC Emissions Mobile On-Road 7,486 5,417 4,865 Solvent Usage 4,644 3,445 3,292 Other 9,920 8,480 7,904 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. The level of ozone improvement varies from site to site. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2C )02 and 200^ Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Wilmington—Newark, DE--MD PMSA 0.12 0.1 0.08 Dover, DE MSA 0.1 0.09 0.08 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. ------- Maryland Emissions State total emissions of NOx and VOCs have decreased from 1997 to 2004. After 2002 the largest emission reductions were NOx emissions from power generating sources. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 46,031 29,209 19,944 Mobile On-Road 67,227 57,748 52,858 Other 38,488 37,266 34,905 VOC Emissions Mobile On-Road 43,424 31,805 28,474 Solvent Usage 21,048 26,796 25,091 Other 32,057 31,182 28,697 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. The level of ozone improvement varies from site to site. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2C )02 and 200^ Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Baltimore, MD PMSA 0.12 0.11 0.09 Hagerstown, MD PMSA 0.1 0.08 Washington, DC-MD-VA-WV PMSA 0.11 0.11 0.09 Wilmington—Newark, DE--MD PMSA 0.12 0.1 0.08 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. Trends for 1997-2004 with 95 percent confidence limits are presented below. Ozone season averages of daily maximum 8-hour ozone were adjusted to remove the influence of year-to-year variability in meteorology. Seasonal Average 8-hour Ozone Trends Baltimore, MD Beltsville (BEL116) 1997 1999 2001 2003 1997 1999 2001 2003 Year Year ------- Pennsylvania Emissions State total emissions of NOx and VOCs have decreased from 1997 to 2004. After 2002 the largest emission reductions were NOx emissions from power generating sources. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 120,503 84,178 51,710 Mobile On-Road 149,830 123,343 113,060 Other 125,216 110,518 105,272 VOC Emissions Mobile On-Road 101,570 70,556 63,291 Solvent Usage 104,708 77,706 76,671 Other 93,583 83,897 80,804 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. The level of ozone improvement varies from site to site. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2C )02 and 200^ Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Newburgh, NY—PA PMSA 0.09 0.09 0.08 Philadelphia. PA-NJ PMSA 0.12 0.11 0.09 Allentown—Bethlehem—Easton, PA MSA 0.1 0.09 0.09 Altoona, PA MSA 0.1 0.09 0.07 Erie, PA MSA 0.09 0.1 0.07 Harrisburg—Lebanon—Carlisle. PA MSA 0.09 0.1 0.08 Johnstown, PA MSA 0.09 0.09 0.07 Lancaster, PA MSA 0.1 0.1 0.08 Pittsburgh, PA MSA 0.11 0.11 0.08 Reading, PA MSA 0.1 0.1 0.08 Scranton—Wilkes-Barre—Hazleton, PA MSA 0.1 0.09 0.07 Sharon, PA MSA 0.09 0.1 0.08 State College, PA MSA 0.09 0.09 0.07 Williamsport, PA MSA 0.08 0.09 0.07 York, PA MSA 0.09 0.1 0.08 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. ------- Trends for 1997-2004 with 95 percent confidence limits are presented below. Ozone season averages of daily maximum 8-hour ozone were adjusted to remove the influence of year-to-year variability in meteorology. Seasonal Average 8-hour Ozone Trends Pittsburgh, PA Kane Exp. Forest (KEF112) 80 - 70 - A 60 - 50 - 40 - 30 H 1997 o- 60 - Laurel Hill (LRL117) 1997 1999 2001 Year Philadelphia, PA 2003 80 - 70 - Q. 60 - 50 - 40 - 30 H 1997 80 - 70 - Q. 60 - 50 - 40 - 30 H 1997 Arendtsville (ARE128) Penn State (PSU106) 80 - 70 - a. 60 50 40 - 30 H 80 - 70 - a. 60 50 40 - 30 H 1997 1999 2001 2003 1997 1999 2001 2003 Year Year ------- Virginia Emissions State total emissions of NOx and VOCs have decreased from 1997 to 2004. After 2002 the largest emission reductions were NOx emissions from power generating sources. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 49,537 39,390 25,443 Mobile On-Road 109,016 75,336 69,097 Other 86,993 79,367 78,609 VOC Emissions Mobile On-Road 70,900 52,086 46,497 Solvent Usage 69,061 52,506 50,849 Other 69,980 64,907 61,483 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. The level of ozone improvement varies from site to site. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2002 and 2004 Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Washington, DC-MD-VA-WV PMSA 0.11 0.11 0.09 Johnson City—Kingsport—Bristol. TN--VA MSA 0.09 0.09 0.08 Norfolk—Virginia Beach—Newport News, VA—NC MSA 0.1 0.1 0.08 Richmond—Petersburg, VA MSA 0.1 0.11 0.08 Roanoke, VA MSA 0.08 0.09 0.07 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. ------- Trends for 1997-2004 with 95 percent confidence limits are presented below. Ozone season averages of daily maximum 8-hour ozone were adjusted to remove the influence of year-to-year variability in meteorology. Seasonal Average 8-hour Ozone Trends Richmond, VA Prince Edward (PED108) Shenandoah NP - Big Meadows (SHN418) Horton Station (VPI120) ------- Washington, DC Emissions Total emissions of NOx and VOCs have decreased from 1997 to 2004. After 2002 the largest emission reductions were NOx emissions from power generating sources. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 93 611 35 Mobile On-Road 4,268 3,633 3,341 Other 2,281 2,225 2,172 VOC Emissions Mobile On-Road 3,356 2,425 2,161 Solvent Usage 4,031 3,068 3,198 Other 1,171 1,035 995 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2002 and 2004 Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Washington, DC-MD-VA-WV PMSA 0.11 0.11 0.09 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. Trends for 1997-2004 with 95 percent confidence limits are presented below. Ozone season averages of daily maximum 8-hour ozone were adjusted to remove the influence of year-to-year variability in meteorology. Seasonal Average 8-hour Ozone Trends Washington, DC o 40 - 1997 1999 2001 2003 Year ------- West Virginia Emissions State total emissions of NOx and VOCs have decreased from 1997 to 2004. After 2002 the largest emission reductions were NOx emissions from power generating sources. Ozone Season (May-September) Emission Totals by Major Source Categories (tons) Source Category 1997 2002 2004 NOx Emissions Power Industry 128,679 86,735 41,333 Mobile On-Road 30,538 22,189 19,365 Other 46,180 48,696 48,808 VOC Emissions Mobile On-Road 18,692 13,724 11,861 Solvent Usage 14,462 12,433 12,192 Other 28,826 26,247 25,784 The emissions data used in the report are measured or estimated values from EPA's National Emissions Inventory (NEI). Starting in 1997, the NEI incorporated power industry data measured by the Continuous Emissions Monitoring System (CEMS). For 2002, the preliminary version of the NEI was used, which includes the 2002 CEMS data, but does not include 2002 data for other sources submitted by state, local, and tribal air agencies. EPA used CEMS data for the power industry for 2003 and 2004. Emissions for other sources for that period were estimated by interpolating between the 2002 preliminary NEI data and a projected 2010 emission inventory developed to support the Clean Air Interstate Rule. For additional information use the following online resources: National Emissions Inventory (NEI): www.epa.gov/ttn/chief/net. Emissions data for the power industry: http://cfpub.epa.gov/gdm . Information on mobile sources: www.epa.gov/otaq . ------- Ozone On average, ozone has declined between 1997 and 2004. These improvements in ozone are in response to both state and regional reductions in NOx and VOC emissions. The level of ozone improvement varies from site to site. Highest Fourth Daily Maximum 8-hour Ozone Concentration by Metropolitan Statistical Area, 1997, 2C )02 and 200^ Metropolitan Statistical Area 1997 03 8-hr (ppm) 2002 03 8-hr (ppm) 2004 03 8-hr (ppm) Washington, DC-MD-VA-WV PMSA 0.11 0.11 0.09 Charleston, WV MSA 0.08 0.09 0.07 Huntington—Ashland, WV--KY--OH MSA 0.09 0.1 0.07 Parkersburg-Marietta, WV--OH MSA 0.09 0.1 0.08 Steubenville-Weirton, OH--WV MSA 0.08 0.1 0.07 Wheeling, WV--OH MSA 0.08 0.1 0.06 Level of the NAAQS is .08 ppm. Units are parts per million (ppm). Notes: • Data from exceptional events are not included. • The reader is cautioned that this summary is not adequate in itself to numerically rank MSAs according to their air quality. • The monitoring data represent the quality of air in the vicinity of the monitoring site and, for some pollutants, may not necessarily represent urban-wide air quality. ------- Trends for 1997-2004 with 95 percent confidence limits are presented below. Ozone season averages of daily maximum 8-hour ozone were adjusted to remove the influence of year-to-year variability in meteorology. Seasonal Average 8-hour Ozone Trends Huntington, WV Cedar Creek (CDR119) 1997 1999 2001 2003 1997 1999 2001 2003 Year Year Parsons (PARI 07) 80 - 70 - 2" 1997 1999 2001 2003 Year ------- |