Final Revisions to AP-42 Chapter 1, Section 6 - Wood Residue Combustion in Boilers
Background
EPA created an emissions factor development team to create new and updated emissions factors for WebFIRE and AP-42 based on test data submitted to the Agency in response to federal electronic reporting requirements. There was a 60 day public comment period that ended on January 11, 2022. No comments were received.
Final Emission Factor Summary List
| Source Classification Code (SCC) | Control | Pollutant |
Draft Factor (lb/mmBtu) |
Existing Factor (lb/mmBtu) |
Difference (%) |
Factor Quality Rating** |
Number of Individual Test Data Included (Excluded) | Draft Date | Finalized Date |
|---|---|---|---|---|---|---|---|---|---|
| 10200902* | Electrostatic Precipitator | PM, Filterable | 1.25E-02 | N/A | N/A | Highly | 48 (7) | 11/12/2021 | 3/22/2022 |
| 10200902* | Uncontrolled | Carbon Monoxide | 7.50E-01 | 6.00E-01 | 25.01 | Highly | 34(1) | 11/12/2021 | 3/22/2022 |
*10200902 - External Combustion Boilers; Industrial; Wood/Bark Waste; Wood/Bark-fired Boiler
**Value represents new quality ratings given to factors based on Emissions Factors Procedures Document. Factors are given quality ratings based on representativeness of factor (i.e. Highly = highly representative of the population)
AP-42 Chapter 1, Section 6 - Wood Residue Combustion in Boilers
Final AP-42 Chapter 1, Section 6 - Wood Residue Combustion in Boilers (pdf)
Draft AP-42 Chapter 1, Section 6 - Wood Residue Combustion in Boilers (pdf)
Red Line Strike Out AP-42 Chapter 1, Section 6 - Wood Residue Combustion in Boilers (pdf)
Emission Factor Background Data
Underlying Data for PM-FIL/ESP/10200902 Factor (xlsx)
Underlying Data for CO/Uncontrolled/10200902 Factor (xlsx)
Underlying data for each test point can be viewed by clicking the link for the project data set (PDS). For project data sets created using the Electronic Reporting Tool (ERT; access database), we recommend using the ERT tool to view the submitted test data. Please see the ERT user's guide for more information. Each report used to create these factors can also be retrieved from WebFIRE through the 'Search for Reports' function.