The mortality due to PM 2.5 from buses: Difference between revisions

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{{variable}}
==Scope==
==Scope==


Mortality effects due to PM 2.5 from buses in Helsinki Metropolitan Area
Number of premature deaths due to PM 2.5 from buses in Helsinki Metropolitan Area in 2020
{{reslink| Scope should contain temporal information}}


==Definition==
==Definition==
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===Causality===  
===Causality===  


* effect of bus type on PM 2.5 emissions and exposure,
* effect of bus type on PM 2.5 emissions and exposure,{{disclink| Delete "Effect of bus type on PM2.5 emissions and exposure"}}
* relationship between the exposure of PM 2.5 and mortality effects
* relationship between the exposure of PM 2.5 and mortality effects


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===Formula===
===Formula===


deltaM = M(eexp(bdeltaE)-1)
deltaM = Mb(eexp(bdeltaE)-1)


* b = dose-response coefficient
* b = dose-response coefficient
* deltaE = change in exposure
* deltaE = change in exposure
* M = background mortality
* Mb = background mortality{{reslink|Talk:The mortality due to PM 2.5 from buses}}


==Results==
==Results==


The mortality due to primary fine particles from buses ranged from 3 to 18 cases per year in the different bus strategies.
{| {{prettytable}}
|Scenario
!colspan="3"|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
|}
 
{| {{prettytable}}
|Scenario
!colspan="3"|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
|----
|}
 
{{resultlink}}

Latest revision as of 07:05, 25 August 2008


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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