k rn/y	2011 vs 2012 Comparisons, Annual

S02 Emission Rate Changes at Facilities (Coal Units Only)

United States
Environmental Protection

Agency	With 10,000 Tons Change Between Years

Source: 2011 data are final, 2012 are
preliminary data submitted to EPA from
sources as of February 19,2013. EPA will
update maps as it corrects data over time.

Note: This map displays changes occurring between 2011 and 2012; many facilities already have advanced controls and low emission rates and
therefore show no change. If a unit has not yet reported 2012 emissions data to EPA, it is not included in this map. In areas with a dense concentration
of facilities, the facilities on the map may overlap and some may be impossible to see.

S02 Rate Change (%)

. <25%

•	25% to 50%

•	Over 50%

Decrease
Increase

Not Large Change

-------
k CDA	2011 vs 2012 Comparisons, Annual

NOx Emission Rate Changes at Facilities (Coal Units Only)

United States
Environmental Protection

Agency	With 4,000 Tons Change Between Years



Source: 2011 data are final, 2012 are
preliminary data submitted to EPA from
sources as of February 19,2013. EPA will
update maps as it corrects data over time.



Note: This map displays changes occurring between 2011 and 2012; many facilities already have advanced controls and low emission rates and
therefore show no change. If a unit has not yet reported 2012 emissions data to EPA, it is not included in this map. In areas with a dense concentration
of facilities, the facilities on the map may overlap and some may be impossible to see.

Not Large Change

NOx Rate Change (%)

• <25%

•	25% to 50%

•	Over 50%

Decrease
Increase

-------