Difference between revisions of "Primary PM2.5 emissions from bus traffic in Helsinki Metropolitan Area"
From Testiwiki
(→Result) |
(self-evaluation removed) |
||
| (25 intermediate revisions by 6 users not shown) | |||
| Line 1: | Line 1: | ||
| − | + | [[category:Kuopio Risk Assessment Workshop 2008]] | |
| − | + | {{variable|moderator=Jouni}} | |
| + | |||
| + | == Scope == | ||
| + | Total mass primary PM2.5 emissions from the bus fleet per year in Helsinki Metropolitan Area (HMA)in 2020. | ||
== Definition == | == Definition == | ||
| Line 6: | Line 9: | ||
=== Causality === | === Causality === | ||
List of parents: | List of parents: | ||
| − | * | + | *[[Bus engine technology]] |
| − | + | ||
| − | + | === Data === | |
| − | |||
| − | |||
| − | |||
| + | List of data files or sources: | ||
| − | + | Data tables can be found from the analytica model: [[Image:Gasbus model 01.ANA]] | |
| − | + | * Bus activities | |
| − | * Bus km | + | ** Bus kilometres travelled: 77000000 km (1999) <ref> 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)</ref> |
| − | * | + | ** Relative bus activity: trips per day: 1.596 (in 2020, relative to 1999) (used as a constant but no uncertainty considered) <ref>YTV, Helsinki Metropolitan Area Council. (1999). Helsinki Metropolitan Area Transport System Plan PLJ 1998. Helsinki Metropolitan Area Council Publication Series A 1999:4</ref> |
| − | * Relative | ||
| − | + | * Bus emission factors | |
| − | + | ** Emission factor: 0.321 g/km (1999) <ref>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).</ref> | |
| − | * | + | ** Relative emission factors depending to the technology (relative to current fleet) <ref>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)</ref> |
| + | ** Relative emission factor uncertainty (for diesel with filter and natural gas, based on author judgement) | ||
| + | |||
| + | * Total emission from buses kg/a in 1999 (this relates to all pollutants and is needed to deduce the primary PM <sub>2.5</sub>emission fraction) <ref>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).</ref> | ||
=== Formula === | === Formula === | ||
Analytica_id: | Analytica_id: | ||
| − | + | :Var a:=bus_km*(emission_factor/1000); | |
| − | a:=a*Relative_emission_fa; | + | :a:=a*Relative_emission_fa; |
| − | a:=a*Relative_emission_f2; | + | :a:=a*Relative_emission_f2; |
| − | a*Rel_bus_activity | + | :a*Rel_bus_activity |
| + | |||
| + | The complete formula can be found from the analytica model: [[Image:Gasbus model 01.ANA]] | ||
=== Unit === | === Unit === | ||
Kg/year | Kg/year | ||
== Result == | == Result == | ||
| + | |||
| + | * Year: 2020, using 4 different scenarios, defined in | ||
| + | |||
| + | * [[Gasbus_-_health_impacts_of_Helsinki_bus_traffic]] | ||
| + | |||
{| {{prettytable}} | {| {{prettytable}} | ||
| | | | ||
| Line 93: | Line 103: | ||
|---- | |---- | ||
|} | |} | ||
| + | |||
| + | {{resultlink|10}} | ||
| + | |||
| + | == References == | ||
| + | <references/> | ||
| + | [[Category:Helsinki]] | ||
Latest revision as of 14:19, 20 March 2010
This page is a variable.
The page identifier is Op_en2204 |
|---|
| Moderator:Jouni (see all) |
|
Give your opinion to the peer rating of the content of this page. |
| Upload data
|
Scope
Total mass primary 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 activities
- Bus emission factors
- Total emission from buses kg/a in 1999 (this relates to all pollutants and is needed to deduce the primary PM 2.5emission fraction) [5]
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). 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 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).
