The mortality due to PM 2.5 from buses

Name: The mortality due to PM 2.5 from buses Scope: Mortality effects due to fine particles from buses in Helsinki Metropolitan Area

Definition:

• Data:
  • mortality due to cardiopulmonary, lung cancer and other causes,
  • exposure to road traffic PM 2.5,
  • the fraction of bus exposure of total road traffic exposure

• Causality:
  • relationship between the exposure of PM 2.5 and mortality effects,
  • effect of bus type on PM 2.5 emissions, exposure and mortality

• Unit: estimated deaths per year associated with primary PM 2.5
• Formula: deltaM = M(eexp(bdeltaE)-1)

• • b = dose-response coefficient
  • deltaE = change in exposure
  • M = background mortality

Results: The mortality due to primary fine particles from buses ranged from 3 to 18 casese per year in the different bus strategies.