Table 2 The description of different scenarios. See Exposure scenarios sub-model -chapter for details.
| Â | Scenario | |||
|---|---|---|---|---|
| Â | Current with traffic | Reduced traffic emissions | Current without traffic | Additional exposure |
Follow-up period | Years 2002–2112 | |||
Population | Year 2002 Helsinki Metropolitan Area population | |||
Primary PM2.5 health effects | Included in background mortality | Included in background mortality | Background mortality minus health effects of traffic related primary PM2.5 exposure | Background mortality plus health effects of additional 10 μgm-3 PM2.5 exposure |
Primary PM2.5 exposure scenario | The actual 2002 exposure for 2002–2112 | Actual 2002 exposure for 2002, then a gradual decrease of local traffic exposure until 2025; constant thereafter | No traffic exposure between 2002–2112 | Actual 2002 exposure plus 10 μgm-3 for 2002–2112 |
Uncertainties in exposure taken into account | No | Yes | Yes | No |