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Table 3 Parameter estimates for intake fraction regressions for different pollutants.

From: Between-airport heterogeneity in air toxics emissions associated with individual cancer risk thresholds and population risks

Dependent Variable Independent Variables R2
  Population within 50 km of the airport Product of Population and annual average mixing height (m)  
Benzene iF 8.18 × 10-12
(<0.0001)
-7.05 × 10-15
(<0.0001)
0.95
1,3-butadiene iF 4.78 × 10-12
(<0.0001)
-4.19 × 10-15
(<0.0001)
0.93
BaP iF 7.69 × 10-12
(<0.0001)
-6.59 × 10-15
(<0.0001)
0.95
  1. P-values are listed below regression coefficients.