Primary PM2.5 emissions from bus traffic in Helsinki Metropolitan Area

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Scope
Mass PM2.5 emissions from the bus fleet per year in Helsinki Metropolitan Area (HMA).

Definition

Causality

List of parents:

Data

List of data files or sources:

Data tables can be found from the analytica model: File:Gasbus model 01.ANA

  • Bus kilometres travelled: 77000000 km [1]
  • Relative bus activity: trips per day (relative to 1999) [2]
    • Bus activity
  • Relative emission factors (relative to current fleet) [3]
    • Total emission from buses kg/a [4]
  • Emission factor: 0.321 g/km [5]
  • Relative emission factor uncertainty (for diesel with filter and natural gas, based on author judgement)

Formula

Analytica_id:

<anacode>Var a:=bus_km*(emission_factor/1000); a:=a*Relative_emission_fa; a:=a*Relative_emission_f2; a*Rel_bus_activity</anacode>

The complete formula can be found from the analytica model: File:Gasbus model 01.ANA


Unit

Kg/year

Result

Min Mean Max Std. Dev. 0.05 0.25 0.5 0.75 0.95
BAU A 3.95E+04 3.95E+04 3.95E+04 0.01179 3.95E+04 3.95E+04 3.95E+04 3.95E+04 3.95E+04
EURO 3 D3 1.96E+04 1.96E+04 1.96E+04 0.01235 1.96E+04 1.96E+04 1.96E+04 1.96E+04 1.96E+04
CRT filter C 6013 9956 1.39E+04 1626 7233 8790 9956 1.11E+04 1.27E+04
Natural gas G31 4622 5763 6904 470.6 4975 5426 5763 6101 6551
  1. ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteess‰ p‰‰kaupunkiseudulla [The possibilities to use alternative fuels in public transport in the Helsinki metropolitan area]. Helsinki Metropolitan Area Council Publication Series B 1999:5 (in Finnish)
  2. ↑ YTV, Helsinki Metropolitan Area Council. (1999). Helsinki Metropolitan Area Transport System Plan PLJ 1998. Helsinki Metropolitan Area Council Publication Series A 1999:4
  3. ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteess‰ p‰‰kaupunkiseudulla [The possibilities to use alternative fuels in public transport in the Helsinki metropolitan area]. Helsinki Metropolitan Area Council Publication Series B 1999:5 (in Finnish)
  4. ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteess‰ p‰‰kaupunkiseudulla [The possibilities to use alternative fuels in public transport in the Helsinki metropolitan area]. Helsinki Metropolitan Area Council Publication Series B 1999:5 (in Finnish).
  5. ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteess‰ p‰‰kaupunkiseudulla [The possibilities to use alternative fuels in public transport in the Helsinki metropolitan area]. Helsinki Metropolitan Area Council Publication Series B 1999:5 (in Finnish).
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