Architectural, Behavioral, and Environmental Factors Associated with Indoor VOCs in Anchorage Homes (1995)
![The most important factor influencing [benzene] and other BTEX compounds was the presence of](https://present5.com/presentation/5feffa9d7a0a3570be027919325b6e30/image-6.jpg "The most important factor influencing [benzene] and other BTEX compounds was the presence of")
The most important factor influencing [benzene] and other BTEX compounds was the presence of an attached garage.
![20. 0 18. 0 16. 0 [benzene] ppb 14. 0 12. 0 10. 0](https://present5.com/presentation/5feffa9d7a0a3570be027919325b6e30/image-7.jpg "20. 0 18. 0 16. 0 [benzene] ppb 14. 0 12. 0 10. 0")
20. 0 18. 0 16. 0 [benzene] ppb 14. 0 12. 0 10. 0 8. 0 6. 0 4. 0 2. 0 0. 0 garage with parked cars N = 46 garage w/o parked cars N = 16 no attached garage N = 14
We narrowed study scope to include nonsmoking, detached single family homes with attached garages only.
25 22 20 15 12 10 6 5 2 1 0 0 to 5 ppb 5 to 10 ppb 10 to 15 ppb 15 to 20 ppb 20 to 25 ppb 2 0 25 to 30 ppb >30 ppb
Garage to house infiltration rates varied considerably among homes sampled. Homes with forced air furnaces in the garage had higher infiltration rates than homes with other heating configurations.
45% 40% 36. 7% 35% 30% 25% 20% 17. 0% 18. 4% 15% 10% 5% 0% Forced Air Furnace in Garage N = 15 Forced Air Furnace in House N=5 Hydronic N=11
![Although the [CO] in many garages was high immediately after vehicle start-ups, exhaust emissions](https://present5.com/presentation/5feffa9d7a0a3570be027919325b6e30/image-37.jpg "Although the [CO] in many garages was high immediately after vehicle start-ups, exhaust emissions")
Although the [CO] in many garages was high immediately after vehicle start-ups, exhaust emissions do not appear to be the primary source of VOCs in the garage.
![[CO] ppm Hour of Day](https://present5.com/presentation/5feffa9d7a0a3570be027919325b6e30/image-38.jpg "[CO] ppm Hour of Day")
[CO] ppm Hour of Day
R = 0. 2729
The data do not show a significant association between the benzene level in the garage and:
35. 0 32. 3 30. 0 25. 0 20. 0 15. 0 10. 0 7. 6 5. 0 0. 0 Garage Used for Gasoline Equipment Storage N = 23 Garage Not Used for Gasoline Equipment Storage N=8
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