Table IV.
Input Data | SHEDS-PM Model Output for Inter-Individual Variability in Daily Average Exposure to PM2.5 |
||||
---|---|---|---|---|---|
50th Percentile (μg/m3) |
90th Percentile (μg/m3) |
99th Percentile (μg/m3) |
Mean (μg/m3) |
Std.Dev. (μg/m3) |
|
Default Inputsb | 6.7 | 29 | 79 | 12 | 16 |
Updated Inputsc | 6.0 | 31 | 100 | 13 | 21 |
Simulation assumptions: 100,000 individuals, 10 census tracts in Wake County, NC; same random seeds are used in both simulations; ambient PM2.5 concentration data were based on hourly data from July 1, 2002 to July 30, 2002 from the output of the CMAQ air quality model.
The proportions of smokers and “other smokers” in 1995 are approximately 23% and 31%, respectively. Ecig=10.9 mg/cig.
The proportions of smokers and “other smokers” in 2007 are approximately 18% and 28%, respectively. Ecig=13.8 mg/cig.