CALIFORNIA AIR RESOURCES BOARD Lincoln Plaza Auditorium, First Floor 400 "P" Street Sacramento, CA April 13, 1989 10:00 a.m. AGENDA Page 89-6-1 Report on Long Range Research Plan and Indoor 001 Air Quality/Personal Exposure Assessment Five- Year Study Plan. 89-6-2 Public Hearing to Consider the Adoption of 115 Emission Inventory Criteria and Guidelines Pursuant to the Air Toxics "Hot Spots" Information and Assessment Act of 1987 ITEM #89-6-1 Adopt Resolutions 89- and 89- approving the Long-Range Research Plan, dated March, 1989, and the Indoor Air Quality/Personal Exposure Assessment Five-Year Study Plan, dated March, 1989. SUMMARY In establishing the State's approach to clean air, the Legislature: has declared that an effective research program is an integral part of the broad-based statewide effort to combat air pollution in California; has directed the Air Resources Board to administer and coordinate all air pollution research funded, in whole or in part, with state funds; has directed the Air Resources Board to establish objectives for air pollution research; and has directed the Air Resources Board to appoint a Research Screening Committee to give advice and recommendations with respect to air pollution research projects funded by the State. In order to comply with these mandates from the legislature, the Board meets, each year, with its Research Screening Committee, to review the Board's research program, as outlined in the Long-Range Research Plan. This Plan is prepared by the staff, with guidance from the Research Screening Committee. The Long-Range Research Plan contains a section describing the Board's goals and objectives and related extramural research projects, a section listing recently completed research projects, and a section describing each of the research projects proposed for the next fiscal year. These projects are divided into six study areas: Diesels and Motor Vehicles; Toxic Air Contaminants; Stationary Source Emissions Inventory and Control; Regional Air Quality Studies; Health Effects; and Vegetation Effects. For each study area, there is a prioritized list of research projects proposed for the next fiscal year, a figure which relates these projects to ongoing and future work, and a detailed discussion of each proposed project. The discussions include a summary of the research problem, relationship to previous work, description of the proposed approach, and identification of benefits to be provided by the study. This year's Long-Range Research Plan features projects to support the Board's activities to reduce emissions from motor vehicles; support the introduction of clean burning fuels; add to our knowledge of the sources, fate and effects of toxic air contaminants; provide bases for controlling stationary source emissions; better characterize the effects of agricultural burning; improve our ability to analyze regional air quality problems; better define the effects of exposure to air pollutants on human health, and better define the extent of air pollution damage to all forms of vegetation. The Board also conducts a special research program to obtain information regarding indoor air quality and personal exposures to Californians to air pollutants. Health and Safety Code Section 39660.5 requires the Board to consider indoor exposures to toxic pollutants in assessing the risk posed by them. However, little information is available regarding indoor exposures. The information obtained through the Indoor Air Quality/Personal Exposure Assessment Five-Year Study Plan will be used by staff to develop more accurate risk assessments, especially for toxic pollutants considered under the Board's Toxic Air Contaminants Program. ITEM #89-6-2 Public Hearing to Consider the Adoption of an Emission Inventory Criteria and Guidelines Regulation Proposed Pursuant to Requirements of the Air Toxics "Hot Spots" Information and Assessment Act of 1987. RECOMMENDATION The staff recommends that the Board adopt the proposed emission inventory criteria and guidelines regulation. DISCUSSION The Air Toxics "Hot Spots" Act (the "Act") requires that the ARB, in consultation with the districts, develop criteria and guidelines for the preparation of site-specific air toxics emission inventory plans by specified facilities by May 1, 1989. For facilities to which the Act applies, facility operators must prepare and submit these plans to the air pollution control districts by August 1, 1989. The districts must approve, modify, or return the plans to the facilities for revision within 120 days of receipt. After a district approves a plan, the facility operator must implement the plan within 180 days and submit to the district an emission inventory report containing the toxics emission data and other required information as set forth in the Act and the proposed regulation. The Act specifies conditions that must be met for the district to approve a plan and it sets forth requirements that must be included in the guidelines. To comply with these conditions and requirements, the proposed regulation includes specifications for the components of the inventory plan and report, reporting forms, requirements for emission quantification by source testing and other measurement or by acceptable estimation methods, a separation of the list of 326 toxic substances into two groups with differing inventory requirements, and other specifications to ensure acceptable emission inventories. The proposed regulation reflects a thorough evaluation by the staff of the minimum level of detail of information needed to fulfill the requirements of the Act and to support the AB 1807 process.