CALIFORNIA AIR RESOURCES BOARD
Auditorium, First Floor
400 "P" Street
May 11, 1989
89-8-1 Joint Meeting of the Air Resources Board and 001
the Scientific Advisory Committee on Acid
Deposition - Consideration of the Atmospheric
Acidity Protection Program: Five-Year Research
89-8-2 Report to the Board on Follow-Up to the ---
Petition of City of Kingsburg et al. Requesting
the Air Resources Board to Exercise Its Oversight
Authority with Respect to the San Joaquin Valley
Air Pollution Control District's NSR Rules and
Permitting of Small Electrical Generation
89-8-3 Status Report on the Demonstration Program to 031
Control Ethanol Emissions from Winery Fermentation
89-8-4 Consideration of Final Adoption of Regulations, 037
Approved at the Board's November 17, 1988 Meeting,
Limiting the Sulfur content and the Aromatic
Hydrocarbon Content of Motor Vehicle Diesel Fuel.
Atmospheric Acidity Protection Program Five-Year Research Plan.
Adopt Resolution 89-52 approving the Atmospheric Acidity
Protection Program Five-Year Research Plan, dated April, 1989.
In establishing the Atmospheric Acidity Protection Program (AB
2930, Sher), the Legislature mandated that the Air Resources
Board extend the research and monitoring program established by
the Kapiloff Act of 1982. The goals of the Atmospheric Acidity
Protection Program (AAPP) are generally similar to those of the
Kapiloff Act it replaced, but it refines the research issues
based on what we learned in the Kapiloff program and adds
specific requirements for obtaining information necessary to
establish atmospheric acidity or acid deposition standards and,
ultimately, to recommend such standards to the Board.
In order to obtain the necessary information, the staff and the
Board's Scientific Advisory Committee on Acid Deposition have
prepared a research plan for the next five years. The plan is
divided into five general research categories: Atmospheric
Processes; Aquatic Ecosystem Effects; Materials Damage; Health
Effects; and Forest Effects.
The plan places major emphasis on research related to the effects
of atmospheric acidity on human health and on the effects of acid
deposition on California's lakes and streams. A new effort to
investigate the effects of acidity on California forests is also
proposed. The materials damage studies conducted under the
Kapiloff Act have been extended to include other important
building materials not examined earlier. Finally, transport and
deposition processes will be examined to relate the sources of
atmospheric acidity to the deposition at the receptors.
The proposed five-year plan is designed to obtain as much
information as possible within the time and funding provided in
the Act. This information will aid the Board in deciding whether
to set atmospheric acidity or acid deposition standards to
protect the health and welfare of California's citizens and
environment, and at what level to set them if they are needed.
Much of the proposed work related to assessment, evaluation and
the preparation of recommendations of ambient standards will be
carried out by Air Resources Board staff.
Status Report on the Demonstration Program to Control Ethanol
Emissions from Winery Fermentation Tanks.
Overview. This report summarizes the status of the demonstration
program on the control of emissions of ethanol from winery
fermentation tanks. The program exists in two phases. Phase I
ran from the 1987 fermentation season through the 1988
fermentation season. Phase II is planned to begin during the
1989 fermentation season.
Winery fermentation tanks and air quality. During wine
fermentation, exhaust gases containing ethanol are vented from
fermentation tanks into the atmosphere. Ethanol is a volatile
organic compound, and its release to the atmosphere contributes
to the formation of atmospheric photochemical oxidants, including
ozone. The control of ethanol emissions from winery fermentation
tanks is one of the control measures that the Air Resources Board
(ARB) and the Technical Review Group (TRG) have considered for
the reduction of ozone.
Ethanol losses from winery fermentation operations have been
identified as significant sources of oxidant precursors in the
San Joaquin Valley Air Basin (SJVAB). Within the SJVAB, the
Fresno County Air Pollution Control District has committed in its
air quality maintenance plan to control ethanol emissions from
winery fermentation tanks. This measure, along with other
measures, may be necessary for the attainment and maintenance of
the federal ozone standard in Fresno County.
Development of the demonstration program. At the January 22,
1987, Board meeting, the TRG in conjunction with the ARB staff
presented a suggested control measure (SCM) for the control of
ethanol emissions from winery fermentation tanks. At that
meeting, the Wine Institute, the trade organization of the
California wine industry, testified before the Board about
several issues relating to the technical feasibility and cost of
the proposed SCM. As a result, the Board directed the ARB staff
to work with the Wine Institute to develop a demonstration
program that would resolve these issues.
At the March 27, 1987, Board meeting, the Board approved a
demonstration program to assess the feasibility and cost of
ethanol emission controls during wine fermentation. The Board
deferred taking action on the SCM for control of ethanol
emissions from winery fermentation tanks pending the outcome of
the demonstration program.
An ad hoc advisory committee comprising of two members of the ARB
staff, a member of the TRG, and two representatives appointed by
the Wine Institute was formed to implement the demonstration
program in two phases.