Difference between revisions of "Primary PM2.5 emissions from bus traffic in Helsinki Metropolitan Area"
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== Scope == | == Scope == | ||
Total mass PM2.5 emissions from the bus fleet per year in Helsinki Metropolitan Area (HMA)in 2020. | Total mass PM2.5 emissions from the bus fleet per year in Helsinki Metropolitan Area (HMA)in 2020. | ||
Revision as of 11:47, 21 February 2008
Scope
Total mass PM2.5 emissions from the bus fleet per year in Helsinki Metropolitan Area (HMA)in 2020.
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 [3]
- Relative emission factors (relative to current fleet) [4]
- Total emission from buses kg/a [5]
- Emission factor: 0.321 g/km [6]
- Relative emission factor uncertainty (for diesel with filter and natural gas, based on author judgement)
Formula
Analytica_id:
- Var a:=bus_km*(emission_factor/1000);
- a:=a*Relative_emission_fa;
- a:=a*Relative_emission_f2;
- a*Rel_bus_activity
The complete formula can be found from the analytica model: File:Gasbus model 01.ANA
Unit
Kg/year
Result
- Year: 2020, using 4 different scenarios, defined in
| 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 |
References
- ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteessä pääkaupunkiseudulla [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)
- ↑ YTV, Helsinki Metropolitan Area Council. (1999). Helsinki Metropolitan Area Transport System Plan PLJ 1998. Helsinki Metropolitan Area Council Publication Series A 1999:4
- ↑ YTV, Helsinki Metropolitan Area Council. (1999). Helsinki Metropolitan Area Transport System Plan PLJ 1998. Helsinki Metropolitan Area Council Publication Series A 1999:4.
- ↑ YTV, Helsinki Metropolitan Area Council. (1999). Vaihtoehtoisten polttoaineiden k‰yttˆmahdollisuudet joukkoliikenteessä pääkaupunkiseudulla [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)
- ↑ 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).
- ↑ 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).
