1. ACTIVITIES, NEEDS, AND FUTURE ACTIONS ON INDOOR AIR QUALITY April 26, 2001 Air Resources Board California Environmental Protection Agency

2. OVERVIEW SYMPOSIUM ACTIONS TO REDUCE RISK RESEARCH PROJECTS FUTURE ACTIONS SUMMARY

3. SYMPOSIUM FINDINGS Indoor sources account for 75-98% of exposure to many VOCs. “A typical pollutant release indoors is 1000 times as effective in causing human exposures as the same release to urban outdoor air.” Indoor source reduction or removal is the most effective strategy. Some schools have problems of poor ventilation, mold growth, and elevated formaldehyde levels.

5. SYMPOSIUM - IDENTIFIED NEEDS State leadership, State solutions Standards and regulations Address schools, children’s exposures Technical assistance manuals, professional training, and guidelines Central clearinghouse for information

6. OVERVIEW SYMPOSIUM ACTIONS TO REDUCE RISK RESEARCH PROJECTS FUTURE ACTIONS SUMMARY

7. CONTROL MEASURE FOR COMPOSITE WOOD PRODUCTS Plan to develop air toxics control measure to reduce emissions from formaldehyde- containing composite wood products Timing –Establish workgroup:Spring 2001 –Evaluate exposure/ control options:Fall 2001 –Public workshop:Winter 2001- 2002 –Staff proposal:Spring 2002 –Board Hearing:Summer 2002

8. CHLORINATED CHEMICALS INDOOR AIR QUALITY GUIDELINE Cancer and other health effects Sources: consumer products, dry-cleaned materials, and chlorinated water Guidance in product selection, reducing exposures

9. COMMUNITY HEALTH PROJECTS SB25 indoor monitoring NAPS health survey & information materials Public information materials Asthma Faire

10. COLLABORATIVE FOR HIGH PERFORMANCE SCHOOLS (CHiPS) Design guidance for healthy, comfortable, sustainable schools State agencies, utilities, federal agencies, other stakeholders "Best Practices Manual" and workshops Training and demonstration schools coming soon

11. GREEN BUILDING TASK FORCE Executive Order D-16-00, Sustainable State Buildings ARB staff involved Recommended strategies “Blueprint” to the Governor

12. OVERVIEW SYMPOSIUM ACTIONS TO REDUCE RISK RESEARCH PROJECTS FUTURE ACTIONS SUMMARY

13. Portable Classrooms

14. PORTABLE CLASSROOMS STUDY Statewide study jointly conducted by ARB and DHS AB 2872, Shelley Phase I: Mail survey –Questionnaires to 1000 schools –Formaldehyde samplers - 800 schools

15. PORTABLE CLASSROOMS STUDY (continued) Phase II: Main field study - 240 classrooms, both portables and traditional - Gaseous and particulate pollutants - Temperature, humidity, noise - Floor dust samples, airborne molds Report to Legislature due June 2002

16. SCHOOL BUS STUDY (Planned) Inside bus, outside bus, bus stops, and ambient Diesel, diesel retrofit, gasoline, natural gas-powered buses Real-time measurements: PM, VOCs, other Pilot study - August 2001, in Los Angeles

17. PERSONAL PM EXPOSURE STUDIES COPD patients in Los Angeles –Relative contributions of indoor and outdoor sources to personal PM2.5 exposures Complementary study of healthy persons in Los Angeles –Includes real-time measurements of PM2.5, chemical components, air exchange rates

18. Personal Exposure Monitoring

19. RESIDENTIAL INDOOR COOKING STUDY Different cooking activities Gas and electric stoves Very high levels of some pollutants –Stove top cooking (gas): PM10 = 60 to 1400  g/m 3 –Self-cleaning cycle (gas): PM10 > 3600  g/m 3 Practical methods to reduce exposures Results - to provide guidance to the public, and improve exposure estimates

20. OVERVIEW SYMPOSIUM ACTIONS TO REDUCE RISK RESEARCH PROJECTS FUTURE ACTIONS SUMMARY

21. FUTURE ACTIONS Use Board’s authority to reduce emissions from a major indoor source: - formaldehyde ATCM Expand public education efforts Address indoor exposures as part of community health activities Use results from Portable Classrooms Study and School Bus Study to develop recommendations to protect children’s health.

22. OVERVIEW SYMPOSIUM ACTIONS TO REDUCE RISK RESEARCH PROJECTS FUTURE ACTIONS SUMMARY

23. Many State agencies and private organizations are engaged in activities that promote healthy indoor environments. Need focused leadership at the State level. Current attention is on schools, State buildings, and energy needs. Need support for emissions reductions measure and other actions.

24. THANK YOU