Table 2 Parameter estimates for de minimis individual risk emission threshold regressions for different pollutants.
Dependent Variable | Independent Variables | |||
|---|---|---|---|---|
Distance between nearest census block group centroid and airport centroid (km) | Log annual average mixing height (m) | Intercept | R 2 | |
Log benzene emission threshold (kg/year) | 0.683 (<0.0001) | 1.43 (0.019) | -1.65 (0.66) | 0.74 |
Log 1,3-butadiene emission threshold (kg/year) | 0.751 (<0.0001) | 1.40 (0.028) | -3.23 (0.41) | 0.75 |
Log BaP emission threshold (g/year) | 0.687 (<0.0001) | 1.42 (0.021) | -0.019 (0.995) | 0.74 |