Difference between revisions of "Talk:Gasbus - health impacts of Helsinki bus traffic"

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(excluded variables described)
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*human behavior (if data available)
 
*human behavior (if data available)
 
*Health impact à mortality rate
 
*Health impact à mortality rate
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==Excluded variables==
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{{discussion
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|Dispute= The following variables should not be included in the assessment
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* A PM2.5 emissions from other sources
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* B Overall PM2.5 concentration in Helsinki
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* C Total PM-induced mortality
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* D Exposure to bus-derived PM2.5
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* E Lung intake of bus-derived PM2.5
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|Outcome= Accepted.
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|Argumentation =
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{{defend|#1: |For A, B, C: We are not interested in non-bus-derived emissions.|--[[User:Jouni|Jouni]] 23:11, 18 February 2008 (EET)}}<br>
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{{defend|#2: |For D, E: We don't need exposure or intake, because we have a concentration-response function, not an exposure-response or dose-response function.|--[[User:Jouni|Jouni]] 23:11, 18 February 2008 (EET)}}
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}}

Revision as of 21:11, 18 February 2008

Suggestions of different groups for issue framing

Päivi Meriläinen, Matteo Prandi, Antonio Gasparrini, Pauliina Ahtoniemi

Scope

Purpose

To compare PM2.5 induced mortality in alternative public bus-transportation strategies as being considered by the Helsinki Metropolitan area.

Boundaries

  • area: Helsinki Metropolitan area, Finland
  • population: whole population in Helsinki area (1 million)
  • primary PM2.5
  • time period: Based on data 1996-1997, projected to year 2020
  • Public Health effects: Mortality due to cardiopulmonary diseases, lung cancer and other non-accidental causes (?)
  • Bus traffic tail-pipe emissions
  • different ratio between the technologies
  • fuel


Scenarios

  1. Business as usual (current bus fleet)
  2. All buses converted to modern diesel (EURO3-STD)
  3. All buses converted to diesel with particle traps
  4. All buses converted to natural gas buses

Intended users

  • Helsinki Metropolitan area council
  • Finnish government (e.g. Finnish ministry of social affairs and health)
  • Scientific community
  • Decision makers at local community level

Participants

  • Scientists: KTL, YTV, Joint Research Centre @ European Commission

Definition

Variables

  • Decision variable: Which bus engine?
    • includes emissions from different engine types
  • PM2.5 emission from bus traffic
  • PM2.5 concentration of bus traffic in Helsinki area (= exposure and intake estimate)
    • data: total conc. of PM2.5 exposure in Helsinki
  • constant: Bus traffic intensity (if it remains the same)
  • Dose-response
    • slope uncertain à variable
    • background mortality included as a constant
  • human behavior (if data available)
  • Health impact à mortality rate

Excluded variables

How to read discussions

Statements:

Resolution: Resolution not yet found.

(A stable resolution, when found, should be updated to the main page.)

Argumentation:

←#1: : For A, B, C: We are not interested in non-bus-derived emissions. --Jouni 23:11, 18 February 2008 (EET)
←#2: : For D, E: We don't need exposure or intake, because we have a concentration-response function, not an exposure-response or dose-response function. --Jouni 23:11, 18 February 2008 (EET)

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