United States
Environmental Protection
Agency
Air and Energy Engineering •
Research Laboratory / /
Research Triangle Park NC 27711
Research and Development
EPA/600/S9-85/015 June 1985
&ER& Project Summary
Proceedings: First Annual Acid
Deposition Emissions
Inventory Symposium
James B. Homolya, Compiler
A 2-day symposium, on the progress
of implementing the National Acid
Precipitation Assessment Program
(NAPAP) Task Group B's emission
inventory programs, was intended pri-
marily for government, academic and
private sector individuals involved in
either the development or use of at-
mospheric emission inventories for acid
deposition and air quality research.
Topics included the development of
emission factors for a wide range of
pollutant emissions and the use of
detailed emission inventories for atmos-
pheric transport, transformation, and
deposition modeling.
The meeting: (1) provided detailed.
presentation and information transfer
of the NAPAP emission inventory pro-
gram; (2) illustrated and strengthened
the relationship between the emission
inventory data base and its users; and
(3) compared and contrasted the
NAPAP emission inventory with other
on-going emission inventory develop-
ment programs.
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 docu-
mented in a separate report of the same
title (see Project Report ordering infor-
mation at back).
Background
The proceedings document presen-
tations during a symposium (cosponsored
by EPA and the Department of Energy),
held December 3-4,1984, in Raleigh, NC.
I n 1980, Congress established the Nation-
al Acid Precipitation Assessment Program
(NAPAP) to coordinate and expand re-
search relevant to the problems posed by
acid deposition in and around the U.S.
The program is organized and managed
through the Interagency Task Force on
Acid Precipitation (ITFAP) and 10 subor-
dinate task groups coordinating specific
technical areas of research. One of these
10 groups is Task Group B, Man-Made
Sources, chaired by a representative of
the Office of Fossil Energy, Department of
Energy (DoE). The task group includes
members representing the Environmental
Protection Agency, the Tennessee Valley
Authority, and the National Laboratory
Consortium. Major objectives of Task
Group B are to:
1. Provide an accurate and complete
inventory of emissions from an-
thropogenic sources believed to be
important in acid deposition pro-
cesses. The inventories are to be
provided with adequate geographic,
temporal, and sectoral resolution.
2. Provide models which predict how
acidic and acid-precursor emissions
may be altered by factors such as
economic growth, fuel supply,
emissions regulations, and control
techniques. These models will have
the capability to permit the calcula-
tion of alternative control strategies.
The 2-day symposium discussed the
progress in the implementation of the
Task Group B emission inventory pro-
grams. J. David Mobley of EPA's Air and
Energy Engineering Research Laboratory
was Symposium Chairman, with planning
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and coordination support from John Fink,
of EPA's Office of Air Quality Planning
and Standards, and Edward Trexler, of
DoE's Office of Fossil Energy. The sym-
posium focused on the National Acid
Precipitation Program Task Group B's
development of a comprehensive emis-
sions inventory for use in acid deposition
research. The meeting was intended
primarily for government, academic, and
private sector individuals involved in
either the development or use of atmos-
pheric emission inventories for acid de-
position and air quality research. Topics
included the development of emission
factors for a wide range of pollutant
emissions and the use of detailed emis-
sion inventories for atmospheric trans-
port, transformation, and deposition
modeling. The following presentations
were made on NAPAP emission inventory
activities, application of emission inven-
tories for scientific purposes, and related
emission inventory development projects.
Session 1: NAPAP Emission
Inventory Activities
Michael A. Maxwell, EPA/AEERL
Session Chairman
• Current Task Group B Emission Inven-
tory Activities, J.D. Mobley, EPA/
AEERL
• Overview of 1980 NAPAP Emission
Inventory, D. A. Toothman, Engineer-
ing-Science
• Utility Point Source Emission Inven-
tory, E. H. Pechan, E. H. Pechan and
Associates
• Development of Temporal, Spatial, and
Volatile Organic Compound Allocation
Factors for the NAPAP Emission In-
ventory, F. M. Sellers, GCA Corporation
• Stationary Source Emission Factor
Development, J. B. Homolya, Radian
Corporation
Session 2: NAPAP Emission
Inventory Activities (continued)
John C. Bosch, EPA/OAQPS
Session Chairman
• User's Guidelines for Access of the
1980 NAPAP Emissions Inventory, C.
0. Mann, EPA/OAQPS/MDAD
• Historical Emissions Inventory Devel-
opment, G. Gschwandtner, Pacific
Environmental Services
• Development of a Monthly Historical
Emissions Inventory, D. Knudson,
Argonne National Laboratory
• Summary of Quality Assurance and
Peer Review Program for NAPAP Task
Group B Emission Inventory Develop-
ment, E. C. Trexler, DoE
• Estimation of Uncertainty Within
NAPAP Emissions Inventory, C. Ben-
kovitz, Brookhaven National Laboratory
• Volatile Organic Compound Specia-
tion, M. P. Papai and J. C. Dickerman,
Radian Corporation
• NAPAP Emission Inventory Develop-
ment for FY 85-86, J. D. Mobley,
EPA/AEERL
Session 3: Application of
Emission Inventories for
Scientific Purposes
Edward C. Trexler, DoE
Session Chairman
• Sulfur Deposition Modeling with the
NAPAP Emission Inventory, T. L.Clark,
EPA/ASRL
• Emission Inventory Applications to
Regional Acid Deposition Modeling, J.
H. Novak, EPA/ASRL
• The Use of Emission Inventories for
Effects Studies, A. M. Bartuskaand W.
R. Alsop, North Carolina State Univer-
sity
Session 4: Related Emission
Inventory Development
Activities
Edward C. Trexler, DoE
Session Chairman
• Canadian Acid Deposition Emission
Inventory Development, F. Vena,
Environment Canada
• Emission Inventory Requirements for
EPRI Acid Deposition Model Develop-
ment, S. L. Heisler, Environmental
Research and Technology
• Development of the Natural Sources
Emissions Inventory, D. L. Albritton,
National Oceanic and Atmospheric
Administration
Session 5: Panel Discussion
John B. Fink, EPA/OAQPS, Moderator
• Emission Inventory Applications, J. H.
Novak, EPA/ASRL
• Emission Factor Development, J. B|
Homolya, Radian Corporation "
• Historical Emission Inventories, G.
Gschwandtner, Pacific Environmental
Services
• Quality Assurance and Estimation of
Uncertainties, C. Benkovitz, Brook-
haven National Laboratory
The meeting was attended by 104
people, representing an excellent cross-
section of the target audience. Foreign
representatives to the meeting were from
Canada, the Netherlands, and the United
Kingdom. The meeting:
1. Provided detailed presentation and
information transfer of the NAPAP
emission inventory program,
2. Illustrated and strengthened the
relationship between the emission
inventory data base and its users,
and
3. Compared and contrasted the
NAPAP emission inventory with
other on-going emission inventory
development programs.
Handout material provided at the meet-
ing included a brief summary of each
presentation. Copies of the papers are
available as the meeting proceedings,
along with a list of registrants.
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J. Homolya is with Radian Corporation, Morrisville, NC 27560.
J. David Mobley is the EPA Project Officer (see below).
The complete report, entitled "Proceedings: First Annual Acid Deposition
Emissions Inventory Symposium," (Order No. PB 85-200 004/AS; Cost:
$14.50, subject to change) will 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. Environmental Protection Agency
Research Triangle Park, NC 27711
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