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sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2021/01/15 18:52] – created kotzulla | sector:energy:fuel_combustion:transport:road_transport:abrasive_emissions_from_road_vehicles:tyre_and_brake_wear [2023/03/02 09:59] (current) – [Discussion of emission trends] kotzulla | ||
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====== 1.A.3.b vi - Road Transport: Automobile Tyre and Brake Wear ====== | ====== 1.A.3.b vi - Road Transport: Automobile Tyre and Brake Wear ====== | ||
+ | |||
+ | ===== Short description===== | ||
+ | |||
+ | 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 | ||
+ | | 1.A.3.b vi | ||
+ | ^ ^ NO< | ||
+ | | Key Category: | ||
+ | |||
+ | ===== Methodology ===== | ||
+ | |||
+ | ==== Activity data ==== | ||
+ | |||
+ | Abrasive emissions from tyre and brake wear are estimated based on vehicle-type specific mileage data. | ||
+ | |||
+ | For detailed mileage data, please see [[sector: | ||
+ | |||
+ | ==== Emission factors ==== | ||
+ | |||
+ | __Table 1: Emission factors applied__ | ||
+ | | | ||
+ | | ::: | ::: | **PCs** | ||
+ | ^ BC | [mg/ | ||
+ | ^ PM< | ||
+ | ^ PM< | ||
+ | ^ TSP | ::: | 10,7 | ||
+ | ^ Pb | [µg/ | ||
+ | ^ Hg | ::: | 0 | 0 | ||
+ | ^ Cd | ::: | 0,05 | ||
+ | ^ As | ::: | 0,04 | ||
+ | ^ Cr | ::: | 0,26 | ||
+ | ^ Cu | ::: | 1,86 | ||
+ | ^ Ni | ::: | 0,32 | ||
+ | ^ Se | ::: | 0,21 | ||
+ | ^ Zn | ::: | 79,5 | ||
+ | ^ B[a]P | ::: | 0,032 | 0,049 | ||
+ | ^ B[b]F | ::: | 0,038 | 0,063 | ||
+ | ^ B[k]F | ::: | 0 | 0 | ||
+ | ^ I[..]P | ||
+ | ^ ∑ PAHs 1-4 | ::: | 0,090 | 0,140 | ||
+ | |||
+ | =====Discussion of emission trends===== | ||
+ | // | ||
+ | |||
+ | __Table 2: Outcome of Key Category Analysis__ | ||
+ | | for: ^ BC | ||
+ | | by: | Level | L/- | L/- | Level & Trend | L/- | | ||
+ | |||
+ | 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 applied in trucks (heayv loads) and buses (stop-and-go). | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | ===== Recalculations ===== | ||
+ | |||
+ | Compared to last year's submission, emission estimates have been revised due to updated mileage data (see super-ordinate chapter). | ||
+ | Differences in the relative changes provided for the specific pollutants result from the different emission factors applied for the different vehicle types. | ||
+ | |||
+ | __Table : Revised emission estimates for particulate matter, copper and zinc, in [kt]__ | ||
+ | | ^ 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 65%> | ||
+ | For **pollutant-specific information on recalculated emission estimates for Base Year and 2020**, please see the recalculation tables following [[general: | ||
+ | </ | ||
+ | ===== Planned improvements ===== | ||
+ | |||
+ | Besides a routine revision of the underlying model, no specific improvements are planned. | ||
+ | |||
+ |