Extended Data Fig. 1: Counties included in analyses that use EPA pollution monitors, and correlation in smoke PM2.5 between monitor pairs as a function of distance between monitors. | Nature Human Behaviour

Extended Data Fig. 1: Counties included in analyses that use EPA pollution monitors, and correlation in smoke PM2.5 between monitor pairs as a function of distance between monitors.

From: Exposures and behavioural responses to wildfire smoke

Extended Data Fig. 1

a. Counties in red are those with EPA pollution monitors from which we construct smoke PM2.5 measures for the behavioral analyses. b Colors depict a heatmap of the 85,102 pairwise correlations, with lighter colors depicting areas with more data and shown in legend at right; solid black line is the median correlation at each distance. Sample is restricted to stations with at least 1000 days of data. Mean width of counties in our data is 55 km, and mean width of metro areas is 228 km. Source for a: US Census Bureau.

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