Polycyclic Organic 7-PAH Emissions 1999

35% Primary Aluminum Production

1% Open Burning - Scrap Tires

10% Other Categories (428 categories)

25% Open Burning - Prescribed  and Wild Fires

22% Residential Wood Heating

2% Open Burning - Residential, Household Waste

5% Industrial/Commercial/ Institutional Boilers & Process Heaters