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Emissions Summaries

Annual Emissions Inventory Trends 1
Pollutant (Tons/Yr) 2008 2009 2010 2011 2012
Particulate Matter < 2.5 microns in diameter 2 11,143 10,076 9,232 9,779 8,574
Particulate Matter < 10 microns in diameter 16,908 15,066 13,697 14,153 12,554
Sulfur Dioxide 162,005 123,269 132,817 126,835 110,588
Nitrogen Oxides 87,417 72,559 73,116 67,124 61,978
Volatile Organic Compounds 22,269 19,666 20,164 20,820 22,079
Carbon Monoxide 52,898 46,722 48,937 39,835 40,329
Lead 6 8 7 6 5
Ammonia 2 3,420 3,219 2,946 3,484 4,111
Total Hazardous Air Pollutants 7,647 6,450 6,408 6,621 6,673

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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