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Emissions Summaries

Annual Emissions Inventory Trends 1
Pollutant (Tons/Yr) 2009 2010 2011 2012 2013
Particulate Matter < 2.5 microns in diameter 2 10,076 9,232 9,779 8,574 7,714
Particulate Matter < 10 microns in diameter 15,066 13,697 14,153 12,554 10,871
Sulfur Dioxide 123,269 132,817 126,835 110,588 103,887
Nitrogen Oxides 72,559 73,116 67,124 61,978 58,773
Volatile Organic Compounds 19,666 20,164 20,820 22,079 21,164
Carbon Monoxide 46,722 48,937 39,835 40,329 36,449
Lead 8 7 6 5 5
Ammonia 2 3,219 2,946 3,484 4,111 3,693
Total Hazardous Air Pollutants 6,450 6,408 6,621 6,673 6,881

1 Total emissions reported by major point sources subject to Title V of the federal Clean Air Act.

2 The Iowa Department of Natural Resources started collecting PM2.5 and NH3 emissions data in 2006.


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