About the National Data


Baseline: 4,295,962,018 Air Quality Index (AQI)-weighted people days exceeded 100 on the AQI in 2016-18

Target: 3,866,365,816 Air Quality Index (AQI)-weighted people days

Number of weighted days with AQI greater than 100.
Target-setting method

Percent improvement

Target-setting method details
10 percent improvement from the baseline.
Target-setting method justification
Trend data were evaluated for this objective, but it was not possible to project a target because the trend predicted unrealistic values (i.e., negative values). A 10 percent improvement from the baseline was used to calculate a target. This method was used because based upon discussions with the Healthy People 2030 Workgroup Subject Matter Experts, as well as using another model, it was the best option.


Comparable HP2020 objective
Retained, which includes core objectives that are continuing from HP2020 with no change in measurement.