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WebFIRE
December 2005
Welcome to the Internet version of FIRE. The FIRE application web site provides fast and complete access to the Agency’s air emissions factors information. In time FIRE will replace the software
application, FIRE version 6.25, and the Microsoft Access version of the database. An
Internet version of FIRE will allow more frequent updates and easier access.
A list of frequently asked questions below describe in more detail the functions of the FIRE program and where the emissions factors come from.
The Emissions Factors & Policy Applications Group welcomes your comments and feedback on the new version of FIRE. We will consider comments received in future releases. Please send an email to the Info CHIEF Help Desk at info.chief@epa.gov. Announcements and updates to the FIRE application will be posted to the CHIEF Listserv.
SIMPLE EMISSIONS FACTOR SEARCH
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Emissions Factors Applicability
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Help Information |
Download WebFIRE Data
The complete WebFIRE data set is available as Comma-separated values
. The CSV file format is a very simple data file format that is supported by almost all spreadsheet software such as Microsoft Excel, as well as Microsoft Access.
All WebFIRE Factors in a CSV format spreadsheet (CSV ~18M)
Importing CSV files into MS Access (TXT 1K)
WebFIRE Factor References
All WebFire Source Classification Codes (SCC) in a CSV format spreadsheet (CSV ~1.5M)
All WebFire Actions in a CSV format spreadsheet (~11KB)
All WebFire Materials in a CSV format spreadsheet (~23KB)
All WebFire Measures in a CSV format spreadsheet (~11KB)
All WebFire Pollutants in a CSV format spreadsheet (~15KB)
All WebFire Units in a CSV format spreadsheet (~5KB)
FREQUENTLY ASKED QUESTIONS
- What is FIRE?
- How does this version of FIRE differ from the software version?
- Where did the emissions factors in FIRE come from?
- Are AP 42 Supplements included in FIRE?
- How up to date are the FIRE SCCs?
- What do the emissions factors ratings mean?
Can't find your question here? E-mail your question to the Info CHIEF Help Desk or call (919) 541-1000.
The Factor Information Retrieval (FIRE) Data System is a database management system containing EPA's recommended emission estimation factors for criteria and hazardous air pollutants. FIRE includes information about industries and their emitting processes, the chemicals emitted, and the emission factors themselves. FIRE allows easy access to criteria and hazardous air pollutant emission factors obtained from the Compilation Of Air Pollutant Emission Factors (AP 42), Locating and Estimating (L&E) documents, and the retired AFSEF and XATEF documents.
HOW DOES THIS VERSION OF FIRE DIFFER FROM THE SOFTWARE VERSION?
The FIRE application web site provides fast and complete access to the Agency’s air emissions factors information. FIRE replaces the software application, FIRE version 6.25 and the MS Access version of the database. An Internet version of FIRE will allow more frequent updates and easier access.
WHERE DID THE EMISSION FACTORS IN FIRE COME FROM?
Emission Factors in FIRE were originally taken from AFSEF and XATEF. AFSEF was a booklet that documented all emission factors for criterial pollutants (CO, Nox, PM, PM-10, SO2, VOC and Lead) that existed in the AIRS mainframe look-up tables as of March 1990. XATEF was a PC database that contained emission factors for toxic air pollutants through October 1990. FIRE combined these two sources with emission factors from the Compilation of Air Pollutant Emission Factors, Volume I, Stationary Point and Area Sources. Over the years poorly documented emission factors have been deleted or updated as data was available. In current and future releases of FIRE outdated emission factors will be marked "revoked".
ARE AP 42 SUPPLEMENTS INCLUDED IN FIRE?
Yes, 5th edition supplements and updates through September 2004 are included in FIRE. For further information see the AP 42 supplements web page.
HOW UP TO DATE ARE THE FIRE SCCS?
The SCCs in FIRE 6.25 are current through September 2004.
WHAT DO THE EMISSIONS FACTORS RATINGS MEAN?
The following information is from the Introduction of the Compilation of Air Pollutant Emission Factors, Volume I: Stationary Point and Area Sources.
Emission factor ratings are best characterized as follows:
- A = Excellent. Emission factor is developed primarily from A- and B-rated source test data taken from many randomly chosen facilities in the industry population. The source category population is sufficiently specific to minimize variability.
- B = Above average. Emission factor is developed primarily from A- or B-rated test data from a moderate number of facilities. Although no specific bias is evident, is not clear if the facilities tested represent a random sample of the industry. As with the A rating, the source category population is sufficiently specific to minimize variability.
- C = Average. Emission factor is developed primarily from A-, B-, and C-rated test data from a reasonable number of facilities. Although no specific bias is evident, it is not clear if the facilities tested represent a random sample of the industry. As with the A rating, the source category population is sufficiently specific to minimize variability.
- D = Below average. Emission factor is developed primarily from A-, B- and C-rated test data from a small number of facilities, and there may be reason to suspect that these facilities do not represent a random sample of the industry. There also may be evidence of variability within the source population.
- E = Poor. Factor is developed from C- and D-rated test data from a very few number of facilities, and there may be reason to suspect that the facilities tested do not represent a random sample of the industry. There also may be evidence of variability within the source category population.
- U = Unrated (Only used in the L&E documents). Emission factor is developed from source tests which have not been thoroughly evaluated, research papers, modeling data, or other sources that may lack supporting documentation. The data are not necessarily "poor," but there is not enough information to rate the factors according to the rating protocol. "U" ratings are commonly found in L&E documents and FIRE rather than in AP 42.