If you are seeing this message, you are likely using an older browser to view this site. This website's content is fully accessible to all browsers, however the web site will look much better and your experience will be much more enjoyable if you upgrade your browser to a more current version. Please visit this web site to upgrade your browser.
EPA's AP-42 is the recommended source of air pollutant emission factors for both criteria and toxic emissions.
While this is by no means a comprehensive list, the following table provides the DAQ forms and applicable AP-42 chapters for a variety of commonly used processes and equipment.
| Form | Subject | AP-42 Chapter |
|---|---|---|
3 |
External Coal Combustion | 1.1 & 1.2 |
3 |
External Fuel Oil (Diesel) Combustion | 1.3 |
3 |
External Natural Gas Combustion | 1.4 |
3 or 15 |
Internal Gas Turbines | 3.1 |
3 or 15 |
Internal Natural Gas Engines | 3.2 |
3 or 15 |
Internal Gasoline and Diesel Engines | 3.3 |
3 or 15 |
Internal Large Diesel & Dual-Fuel Engines | 3.4 |
17 or 20 |
Petroleum Industry (Refineries, etc.) | 5.1 - 5.3 |
18 or 19 |
Organic Liquid Storage Tanks (reference) | 7.1 |
9 or 10 |
Asphalt Plant (Hot, Batch, Drum) | 11.1 |
6, 7, 11a, 11b |
Dozing, Drilling, Blasting | 11.9 |
8 |
Concrete Batching | 11.12 |
7 |
Crushed Stone Processing (sand & gravel) | 11.19 |
11a |
Roads - paved & unpaved | 13.2.1 & 13.2.2 |
11b |
Storage Piles & Aggregate Handling | 13.2.4 |
20a |
Wet Cooling Towers | 13.4 |
2, 6a, 20a |
Industrial Flares | 13.5 |