Audience
0.4
Benefit (0–10)
7
Benefit (Net)
4
Certainty
0.95
Cost (0–10)
3
Degree of Global Consensus (1–5)
5
Difficulty of Change
0.05
Impact Score (ABCD)
76

Audience: According to a report, 40% of the American population is exposed to unhealthy air quality.

Benefit: It is likely that people living in polluted areas can extend their life expectancy by at least one year.

Cost: Indoor air purification could cost $XXX per year and up.

Difficulty: Given the low levels of awareness and relatively low cost of implementation, we have opted to use the default difficulty score.