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sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2021/12/15 19:07] – external edit 127.0.0.1 | sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2023/03/02 09:56] – [Discussion of emission trends] kotzulla | ||
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In sub-categories //1.A.3.b vi - Road transport: Automobile tyre and brake wear// emissions from automobile tyre and brake wear in RT are reported. Therefore, these sub-category is an important source for a) particle emissions and b) emissions of heavy metals, POPs etc. included in these particles. | In sub-categories //1.A.3.b vi - Road transport: Automobile tyre and brake wear// emissions from automobile tyre and brake wear in RT are reported. Therefore, these sub-category is an important source for a) particle emissions and b) emissions of heavy metals, POPs etc. included in these particles. | ||
- | ^ Category Code ^ Method | + | ^ Category Code ^ Method |
- | | 1.A.3.b vi | + | | 1.A.3.b vi |
- | ^ | + | ^ |
- | | 1.A.3.b vi | + | | Key Category: |
===== Methodology ===== | ===== Methodology ===== | ||
Line 45: | Line 45: | ||
// | // | ||
- | __Table: Outcome of Key Category Analysis__ | + | __Table |
| for: ^ BC | | for: ^ BC | ||
| by: | Level | L/- | L/- | Level & Trend | L/- | | | by: | Level | L/- | L/- | Level & Trend | L/- | | ||
Line 51: | Line 51: | ||
All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered. | All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered. | ||
- | {{ : | + | {{ : |
- | {{ : | + | |
+ | Whereas annual copper emissions result almost entirely from the wear of (disc) brakes... | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | ...zinc emissions result from both tyre and brake wear with high amounts of zinc used in tyre rubber and drum brakes. | ||
+ | |||
+ | {{ : | ||
===== Recalculations ===== | ===== Recalculations ===== | ||
- | **Activity data** (mileage) | + | Compared to last year's submission, emission estimates |
+ | Differences in the relative changes provided for the specific pollutants result from the different emission factors applied for the different vehicle types. | ||
- | However, the biggest changes occur in the tier1 **emission factors** that have been revised during a research study. | + | __Table : Revised emission estimates for particulate matter, copper and zinc, in [kt]__ |
- | The variety of old and revised emission factors cannot be compared here in a comprehendible way. | + | | ^ 1990 ^ 1995 |
+ | | **Black Carbon (BC)** - from tyre wear only | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **PM< | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **PM< | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Total Suspended Particles (TSP)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Copper (Cu)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
+ | | **Zinc (Zn)** | ||
+ | ^ current submission | ||
+ | ^ previous submission | ||
+ | ^ absolute change | ||
+ | ^ relative change | ||
- | <WRAP center round info 60%> | ||
- | For more information on recalculated emission estimates for Base Year and 2018, please see the pollutant-specific recalculation tables following chapter [[general: | ||
- | </ | ||
+ | <WRAP center round info 65%> | ||
+ | For **pollutant-specific information on recalculated emission estimates for Base Year and 2020**, please see the recalculation tables following [[general: | ||
+ | </ | ||
===== Planned improvements ===== | ===== Planned improvements ===== | ||