| Table A.2. Nitrogen Oxides Uncontrolled Emission Factors |
| Fuel, Code, Source and Emission Units | Combustion System Type / Firing Configuration | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |
Tangential Boiler | All Other Boiler Types | ||||||||||
| Fuel | EIA Fuel Code | Source and Tables (As Appropriate) | Emissions Units Lbs = Pounds MMCF = Million Cubic Feet MG = Thousand Gallons |
Cyclone Firing Boiler | Fluidized Bed Firing Boiler | Stoker Boiler | Dry-Bottom Boilers | Wet-Bottom Boilers | Dry-Bottom Boilers | Wet-Bottom Boilers | Combustion Turbine | Internal Combustion Engine |
| Distillate Fuel Oil | DFO | Source: 2, Tables 1.3-1, 3.1-1, & 3.4-1 | Lbs per MG | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 122.00 | 443.80 |
| Jet Fuel | JF | Source: 2, Tables 1.3-1, 3.1-1, & 3.4-1 | Lbs per MG | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 118.80 | 432.00 |
| Kerosene | KER | Source: 2, Tables 1.3-1, 3.1-1, & 3.4-1 | Lbs per MG | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 24.00 | 118.80 | 432.00 |
| Other Biomass Liquids | OBL | Source: 1 (including footnote 3 within source); EIA estimates | Lbs per MG | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 112.30 | 408.30 |
| Residual Fuel Oil | RFO | Source: 2, Table 1.3-1; EIA estimates | Lbs per MG | 47.00 | 47.00 | 47.00 | 32.00 | 32.00 | 47.00 | 47.00 | 131.70 | 479.00 |
| Wood Waste Liquids | WDL | Source: 1 (including footnote 16 within source); EIA estimates | Lbs per MG | 5.43 | 5.43 | 5.43 | 5.43 | 5.43 | 5.43 | 5.43 | 230.50 | 838.10 |
| Waste Oil | WO | Source: 2, Table 1.11-2; EIA estimates | Lbs per MG | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 19.00 | 92.20 | 335.20 |
| Blast Furnace Gas | BFG | Sources: 1 (including footnote 7 within source); EIA estimates | Lbs per MMCF | 15.40 | 15.40 | 15.40 | 15.40 | 15.40 | 15.40 | 15.40 | 30.40 | 256.55 |
| Landfill Gas | LFG | Sources: 1 (including footnote 7 within source); EIA estimates | Lbs per MMCF | 72.44 | 72.44 | 72.44 | 72.44 | 72.44 | 72.44 | 72.44 | 144.00 | 1,215.22 |
| Natural Gas | NG | Source: 2, Tables 1.4-1, 3.1-1, and 3.4-1 | Lbs per MMCF | 280.00 | 280.00 | 280.00 | 170.00 | 170.00 | 280.00 | 280.00 | 328.00 | 2,768.00 |
| Other Biomass Gas | OBG | Sources: 1 (including footnote 7 within source); EIA estimates | Lbs per MMCF | 112.83 | 112.83 | 112.83 | 112.83 | 112.83 | 112.83 | 112.83 | 313.60 | 2,646.48 |
| Other Gases | OG | Sources: 1 (including footnote 7 within source); EIA estimates | Lbs per MMCF | 152.82 | 152.82 | 152.82 | 152.82 | 152.82 | 152.82 | 152.82 | 263.82 | 2,226.41 |
| Other | OTH | Assumed to have emissions similar to Natural Gas. | Lbs per MMCF | 280.00 | 280.00 | 280.00 | 170.00 | 170.00 | 280.00 | 280.00 | 328.00 | 2,768.00 |
| Propane Gas | PG | Sources: 3; EIA estimates | Lbs per MMCF | 522.26 | 522.26 | 522.26 | 522.26 | 522.26 | 522.26 | 522.26 | 803.36 | 6,779.57 |
| Synthesis Gas from Petroleum Coke | SGC | Assumed to have emissions similar to Natural Gas | Lbs per MMCF | 280.00 | 280.00 | 280.00 | 170.00 | 170.00 | 280.00 | 280.00 | 328.00 | 2,768.00 |
| Coal-Derived Synthesis Gas | SGP | Assumed to have emissions similar to Natural Gas | Lbs per MMCF | 280.00 | 280.00 | 280.00 | 170.00 | 170.00 | 280.00 | 280.00 | 328.00 | 2,768.00 |
| Agricultural Byproducts | AB | Source: 1 | Lbs per ton | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | 1.20 | N/A | N/A |
| Bituminous Coal | BIT | Source: 2, Table 1.1-3 | Lbs per ton | 33.00 | 5.00 | 11.00 | 10.00 | 14.00 | 12.00 | 31.00 | N/A | N/A |
| Lignite Coal | LIG | Source: 2, Table 1.7-1 | Lbs per ton | 15.00 | 3.60 | 5.80 | 7.10 | 7.10 | 6.30 | 6.30 | N/A | N/A |
| Municipal Solid Waste | MSW | Source: 1 | Lbs per ton | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | N/A | N/A |
| Other Biomass Solids | OBS | Source: 1 (including footnote 11 within source) | Lbs per ton | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | N/A | N/A |
| Petroleum Coke | PC | Source: 1 (including footnote 8 within source) | Lbs per ton | 21.00 | 5.00 | 21.00 | 21.00 | 21.00 | 21.00 | 21.00 | N/A | N/A |
| Refined Coal | RC | Assumed to have the emissions similar to Bituminous Coal. | Lbs per ton | 33.00 | 5.00 | 11.00 | 10.00 | 14.00 | 12.00 | 31.00 | N/A | N/A |
| Subbituminous Coal | SUB | Source: 2, Table 1.1-3 | Lbs per ton | 17.00 | 5.00 | 8.80 | 7.20 | 7.20 | 7.40 | 24.00 | N/A | N/A |
| Tire-Derived Fuel | TDF | Source: 1 (including footnote 13 within source) | Lbs per ton | 33.00 | 5.00 | 11.00 | 10.00 | 14.00 | 12.00 | 31.00 | N/A | N/A |
| Waste Coal | WC | Source: 1 (including footnote 20 within source) | Lbs per ton | 15.00 | 3.60 | 5.80 | 7.10 | 7.10 | 6.30 | 6.30 | N/A | N/A |
| Wood Waste Solids | WDS | Source: 1 | Lbs per ton | 2.51 | 2.00 | 1.50 | 2.51 | 2.51 | 2.51 | 2.51 | N/A | N/A |
| Black Liquor | BLQ | Source: 1 | Lbs per ton ** | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | N/A | N/A |
| Sludge Waste | SLW | Source: 1 (including footnote 11 within source) | Lbs per ton ** | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | 5.00 | N/A | N/A |
| Notes: ** Although Sludge Waste and Black Liquor consist substantially of liquids, these fuels are measured and reported to EIA in tons. Sources: 1. Eastern Research Group, Inc. and E.H. Pechan & Associates, Inc., Documentation for the 2002 Electric Generating Unit National Emissions Inventory, Table 6, September 2004. Prepared for the U.S. Environmental Protection Agency, Emission Factor and Inventory Group (D205-01), Emissions, Monitoring and Analysis Division, Research Triangle Park 2. U.S. Environmental Protection Agency, AP 42, Fifth Edition (Compilation of Air Pollutant Emission Factors, Volume 1: Stationary Point and Area Sources); available at: http://www.epa.gov/ttn/chief/ap42/ 3. U.S. Environmental Protection Agency, Factor Information Retrieval (FIRE) Database, Version 6.25; available at: http://www.epa.gov/ttn/chief/software/fire/index.html |