k CDA	2012 vs 2013 Comparisons, Annual
S02 Emission Rate Changes at Facilities (Coal Units Only)
United States
Environmental Protection
Agency	With 10,000 Tons Change Between Years
Source: 2012 data are final, 2013 are
preliminary data submitted to EPA from
sources as of February 24,2014. EPA will
update maps as it corrects data over time.
Note: This map displays changes occurring between 2012 and 2013; many facilities already have advanced controls and low emission rates and
therefore show no change. If a unit has not yet reported 2013 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

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k rn/v	2012 vs 2013 Comparisons, Annual
NOx Emission Rate Changes at Facilities (Coal Units Only)
United States
Environmental Protection
Agency	With 4,000 Tons Change Between Years
Source: 2012 data are final, 2013 are
preliminary data submitted to EPA from
sources as of February 24,2014. EPA will
update maps as it corrects data over time.
Note: This map displays changes occurring between 2012 and 2013; many facilities already have advanced controls and low emission rates and
therefore show no change. If a unit has not yet reported 2013 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.
Decrease
Increase
Not Large Change
NOx Rate Change (%)
. <25%
•	25% to 50%
•	Over 50%

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