Environmental
Urban air pollution exposure
Estimated long-term acute risk contribution from a day of exposure to average urban air pollution.
Base risk estimate
0.05 micromorts per days
Population-level estimate. Not a personal prediction.
Assumptions
Assumes population-level average urban air quality exposure.
Limitations
Highly variable by city, region, season, and individual health. Long-term chronic risk is methodologically distinct from acute daily risk — this framing has significant limitations.
Source notes
Placeholder value for development only. WHO Global Air Quality Guidelines (2021) and Health Effects Institute (HEI) reports provide population-attributable mortality estimates from PM2.5 and ozone exposure. Converting chronic population-attributable mortality to acute per-day micromorts requires careful methodology (see Pope CA & Dockery DW, J Air Waste Manag Assoc 2006;56:709-742). This framing conflates chronic risk with acute per-unit risk.
Last reviewed
6/10/2026