Table 2.

OLS effects of frequency downwind of highways.

	3-year mortality rate for 75± year olds from:
Dependent variable:	All causes		Cardio-respiratory		Lung cancer		Other cancer
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
Frequency downwind	0.039	0.064	0.021	0.044	0.002	0.006	0.008	0.005
	(0.016)	(0.018)	(0.013)	(0.014)	(0.003)	(0.004)	(0.007)	(0.009)
Effect of 1 SD change in frequency downwind	0.005	0.008	0.003	0.006	0.000	0.001	0.001	0.001
Highway segment FE		Yes		Yes		Yes		Yes
Dependent variable mean	0.155	0.155	0.103	0.103	0.006	0.006	0.022	0.022
N	9027	9027	9027	9027	9027	9027	9027	9027

Notes: Each column represents a separate regression of the dependent variable on the percentage of time spent downwind of a major highway. The observation is the census block, and the sample is limited to census blocks with centroids between 50 and 600 m from major highways. Parentheses contain spatial standard errors with a 3200 m bandwidth. All regressions include controls for distance to highway, weather station fixed effects, share African-American, and share over ages 50, 55, 60, 65, 70, and 75. Regressions without highway segment fixed effects include quintics in latitude and longitude and first- and second-order interactions between latitude and longitude. Regressions with highway segment fixed effects include highway segments fixed effects with an 800 m bandwidth.