The mortality due to PM 2.5 from buses

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Scope

Number of premature deaths due to PM 2.5 from buses in Helsinki Metropolitan Area in 2020 R↻

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

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

Unit

Estimated deaths per year associated with primary PM 2.5

Formula

deltaM = Mb(eexp(bdeltaE)-1)

  • b = dose-response coefficient
  • deltaE = change in exposure
  • Mb = background mortalityR↻

Results

Scenario Current 1997
Endpoint Cardiopulmonary Lung ca All others
Mean 10 1.4 0.1
SD 9.3 1.3 1.6
0.01 0 -1.3 -5.4
0.025 0 -0.6 -1.9
0.05 0 -0.1 0
0.25 0 0.7 0
0.5 (Median) 9 1.3 0
0.75 15.6 2 0
0.95 27.3 3.9 0.7
0.975 31.3 4.6 3.5
0.99 36.1 5.8 6.4
Scenario Year 2020
Endpoint Cardiopulmonary Lung ca All others
Mean 13.1 1.9 0.1
SD 23.1 3.5 3
0.01 0 -1.3 -4.6
0.025 0 -0.5 -1.3
0.05 0 0 0
0.25 0 0.3 0
0.5 (Median) 5.6 0.9 0
0.75 15.4 2.2 0
0.95 51.4 7.4 0.5
0.975 76.7 10.5 2.7
0.99 114.2 16.2 8

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