United States
Environmental Protection
Agency
Air and Energy Engineering
Research Laboratory
Research Triangle Park, NC 27711
Research and Development
EPA/600/S2-90/024 Aug. 1990
&EPA Project Summary
Emission Factors for Iron and
Steel Sources: Criteria and Toxic
Pollutants
William R. Barnard
This study provides a
comprehensive set of emission
factors for sources of both criteria
and toxic air pollutants in integrated
iron and steel plants and specialty
electric arc shops (mini-mills).
Emission factors are identified for
process sources and process and
open source fugitive emissions. The
emission factors are not specific to
any one facility. Emission factors for
the gray iron foundries and the
ferroalloy industry are not included.
This Project Summary was
developed by EPA's Air and Energy
Engineering Research Laboratory,
Research Triangle Park, NC, to
announce key findings of the research
project that is fully documented in a
separate report of the same title (see
Project Report ordering information at
back).
Introduction
The study consisted of a literature
search to determine emissions and
emission factors available in the
literature. In addition to identifying the
literature source for each emission factor,
the range of values found, and the
recommended best value with its rating
are presented
Recommendations
The recommendations of this study are
to use AP-42* emission factors wherever
possible and to use the emission factors
developed for the 1985 NAPAP
emissions inventory when AP-42
emission factors are unavailable. Other
work uncovered in 'the literature search
represented older studies conducted
primarily on uncontrolled sources.
Little information existed on toxic air
pollutant emission factors. The toxic air
pollutant emission factors reported in
EPA,450/2-88/006a" should be used
despite the limitations of that study.
Additional work would help quantify the
emissions of toxic air pollutants from the
iron and steel industry.
"Compilation of Air Pollutant Emission Factors,
Volume I Stationary Point and Area Sources,
AP-42 (GPO 055-000-00251-7), Fourth Edition
(including Supplements A and B), U.S. EPA,
Research Triangle Park, NC, September 1985.
"Toxic Air Pollutant Emission Factors-A
Compilation for Selected Air Toxic Compounds
and Sources, EPA/450/2-88/006a (NTIS PB 89-
135 644), US EPA, Research Triangle Park,
NC, October 1988
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William R. Barnard is with E. H. Pechan and Assort-
»°*ert C- f***m* * the EPA Protect Officer (see be
The complete report, entitted "Emission Factors for
Cntena and Tox,c Pollutants" (Order No. PB 90-
subjectto change) nil, be available only from
National Technical Information Service '
5285 Port Royal Road
Springfield, VA 22161
Telephone: 703-487-4650
The EPA Project Officer can be contacted at:
Air and Energy Engineering Research Laboratory
U.S. Env.ronmental Protect/on Agency V
Research Triangle Park, NC 27711
" '
fnc" Durham> NC
,-.- *„„,
314/AS: C°St: $23-°°>
United States
Environmental Protection
Agency
Official Business
Penalty for Private Use $300
Center for Environmental Research
information
Cincinnati OH 45268
EPA/600/S2-90/024
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