United States
Environmental Protection
Agency
2008 vs 2010  Comparisons, Quarter 1  (January 1- March 31)
     SO2 Emissions Changes at  Facilities (Coal Units Only)
 SO2 Chang* (tons)
  .  <1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                           Source: 2008 data are final, 2010 are
                                           preliminary data submitted to EPA from
                                           sources as of November 2, 2010. EPA will
                                           update maps as it corrects data over time.
           Note: This map displays changes occurring between the first quarter of 2008 and the first quarter of 2010; many facilities already have
           advanced controls and low emission rates and therefore show no change. If a unit has not yet reported first quarter 2010 emissions data to
           EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs  2010 Comparisons, Quarter 2  (April 1- June 30)
 SO2 Emissions Changes at Facilities (Coal Units Only)
 SO2 Chang* (tons)
  .  <1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                       Source: 2008 data are final, 2010 are
                                       preliminary data submitted to EPA from
                                       sources as of November 2, 2010. EPA will
                                       update maps as it corrects data over time.
        Note: This map displays changes occurring between the second quarter of 2008 and the second quarter of 2010; many facilities already
        have advanced controls and low emission rates and therefore show no change. If a unit has not yet reported second quarter 2010 emissions
        data to EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 3 (July  1- September 30)
     SO2 Emissions  Changes at  Facilities (Coal  Units  Only)
 SO2 Chang* (tons)
  .  <1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                           Source: 2008 data ai
                                           preliminary data submitted to EPA from
                                           sources as of November 2, 2010. EPA will
                                           update maps as it corrects data over time.
            Note: This map displays changes occurring between the third quarter of 2008 and the third quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported third quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 1  (January 1- March 31)
SO2 Emissions Rate Changes at Facilities (Coal  Units Only)
 SO, Rat* Chang* (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease
  Increase
  Not Large Change
                                         Source: 2008 data ai
                                         preliminary data submitted to EPA from
                                         sources as of November 2, 2010. EPA will
                                         update maps as it corrects data over time.
           Note: This map displays changes occurring between the first quarter of 2008 and the first quarter of 2010; many facilities already have
           advanced controls and low emission rates and therefore show no change. If a unit has not yet reported first quarter 2010 emissions data to
           EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
   2008 vs 2010 Comparisons, Quarter 2 (April 1- June 30)
SO2  Emissions Rate Changes at Facilities (Coal Units Only)
 SO, Rat* Chang* (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease
  Increase
  Not Large Change
                                          Source: 2008 data ai
                                          preliminary data submitted to EPA from
                                          sources as of November 2, 2010. EPA will
                                          update maps as it corrects data over time.
           Note: This map displays changes occurring between the second quarter of 2008 and the second quarter of 2010; many facilities already
           have advanced controls and low emission rates and therefore show no change. If a unit has not yet reported second quarter 2010 emissions
           data to EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 3 (July 1- September 30)
 SO2  Emissions Rate Changes at Facilities (Coal Units Only)
 SO, Rat* Chang* (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease
  Increase
  Not Large Change
                                          Source: 2008 data ai
                                          preliminary data submitted to EPA from
                                          sources as of November 2, 2010. EPA will
                                          update maps as it corrects data over time.
            Note: This map displays changes occurring between the third quarter of 2008 and the third quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported third quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 1  (January 1-  March  31)
     NOX Emissions Changes at Facilities (Coal  Units  Only)
                                                      \     "•    • j
                                                     •\     -.   r  •
 NOX Change (tons)
  .  < 1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                          Source: 2008 data ai
                                          preliminary data submitted to EPA from
                                          sources as of November 2, 2010. EPA will
                                          update maps as it corrects data over time.
           Note: This map displays changes occurring between the first quarter of 2008 and the first quarter of 2010; many facilities already have
           advanced controls and low emission rates and therefore show no change. If a unit has not yet reported first quarter 2010 emissions data to
           EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs  2010 Comparisons, Quarter 2 (April 1- June 30)
 NOX Emissions Changes at Facilities (Coal  Units Only)
 NOX Change (tons)
  .  < 1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                       Source: 2008 data are final, 2010 are
                                       preliminary data submitted to EPA from
                                       sources as of November 2, 2010. EPA will
                                       update maps as it corrects data over time.
        Note: This map displays changes occurring between the second quarter of 2008 and the second quarter of 2010; many facilities already
        have advanced controls and low emission rates and therefore show no change. If a unit has not yet reported second quarter 2010 emissions
        data to EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 3 (July 1- September 30)
     NOX Emissions Changes at Facilities (Coal Units Only)
 NOX Change (tons)
  .  < 1,000
  •  1,000 to 10,000
  •  10,000 to 25,000
 •  Over 25,000

  Decrease

  Increase

  Not Large Change
                                           Source: 2008 data are final, 2010 are
                                           preliminary data submitted to EPA from
                                           sources as of November 2, 2010. EPA will
                                           update maps as it corrects data over time.
            Note: This map displays changes occurring between the third quarter of 2008 and the third quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported third quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 1  (January  1- March 31)
NOX Emissions  Rate Changes at Facilities (Coal Units  Only)
                                                     \     "•    • j
                                                    •\     -.   r  •

 NOX Rate Change (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease

  Increase

  Not Large Change
                                         Source: 2008 data ai
                                         preliminary data submitted to EPA from
                                         sources as of November 2, 2010. EPA will
                                         update maps as it corrects data over time.
           Note: This map displays changes occurring between the first quarter of 2008 and the first quarter of 2010; many facilities already have
           advanced controls and low emission rates and therefore show no change. If a unit has not yet reported first quarter 2010 emissions data to
           EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
   2008 vs 2010 Comparisons, Quarter 2 (April 1- June 30)
NOX Emissions  Rate Changes at Facilities  (Coal Units Only)

 NOX Rate Change (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease

  Increase

  Not Large Change
                                         Source: 2008 data ai
                                         preliminary data submitted to EPA from
                                         sources as of November 2, 2010. EPA will
                                         update maps as it corrects data over time.
           Note: This map displays changes occurring between the second quarter of 2008 and the second quarter of 2010; many facilities already
           have advanced controls and low emission rates and therefore show no change. If a unit has not yet reported second quarter 2010 emissions
           data to EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons,  Quarter 3 (July  1- September 30)
 NOX Emissions  Rate Changes at Facilities (Coal Units  Only)

 NOX Rate Change (%)
  .  <50%
  •  50% to 85%
  •  Over 85%

  Decrease

  Increase

  Not Large Change
                                          Source: 2008 data are final, 2010 are
                                          preliminary data submitted to EPA from
                                          sources as of November 2, 2010. EPA will
                                          update maps as it corrects data over time.
            Note: This map displays changes occurring between the third quarter of 2008 and the third quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported third quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs  2010 Comparisons,  Quarter 1  (January  1-  March 31)
        Heat Input Changes  at  Facilities (Coal Units Only)
 Heat Input Chang* (mmBtu)
  .  < 1,000,000
  *  1,000,000 to 5,000,000
  *  5,000,000 to 10,000,000
 •  Over 10,000,000

  Decrease

  Increase

  Not Large Change
                                           Source: 2008 data ai
                                           preliminary data submitted to EPA from
                                           sources as of November 2, 2010. EPA will
                                           update maps as it corrects data over time.
            Note: This map displays changes occurring between the first quarter of 2008 and the first quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported first quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs 2010 Comparisons, Quarter 2  (April 1- June 30)
     Heat Input Changes at Facilities (Coal  Units  Only)
 Heat Input Chang* (mmBtu)
  .  < 1,000,000
  *  1,000,000 to 5,000,000
  *  5,000,000 to 10,000,000
 •  Over 10,000,000

  Decrease

  Increase

  Not Large Change
                                        Source: 2008 data ai
                                        preliminary data submitted to EPA from
                                        sources as of November 2, 2010. EPA will
                                        update maps as it corrects data over time.
        Note: This map displays changes occurring between the second quarter of 2008 and the second quarter of 2010; many facilities already
        have advanced controls and low emission rates and therefore show no change. If a unit has not yet reported second quarter 2010 emissions
        data to EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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United States
Environmental Protection
Agency
2008 vs  2010 Comparisons, Quarter 3  (July 1- September 30)
         Heat  Input Changes at Facilities  (Coal  Units  Only)
 Heat Input Chang* (mmBtu)
  .  < 1,000,000
  *  1,000,000 to 5,000,000
  *  5,000,000 to 10,000,000
 •  Over 10,000,000

  Decrease

  Increase

  Not Large Change
                                            Source: 2008 data ai
                                            preliminary data submitted to EPA from
                                            sources as of November 2, 2010. EPA will
                                            update maps as it corrects data over time.
            Note: This map displays changes occurring between the third quarter of 2008 and the third quarter of 2010; many facilities already have
            advanced controls and low emission rates and therefore show no change. If a unit has not yet reported third quarter 2010 emissions data to
            EPA, it is not included in this map. Multiple facilities at a single location are dispersed to show all facilities at that location.	

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