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1.A.3.b vii - Road Transport: Automobile Road Abrasion

Short description

In sub-category 1.A.3.b vii - Road Transport: Automobile Road Abrasion emissions from road abrasion in Road Transport are reported. Therefore, this 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 AD EF
1.A.3.b.vii T1, T3 NS, M CS
NOx NMVOC SO2 NH3 PM2.5 PM10 TSP BC CO Pb Cd Hg Diox PAH HCB
Key Category: - - - - L/- L/- L/- - - -/- -/- - - - -

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 superordinate chapter on abrasive emissions from road vehicles.

Emission factors

Table 1: Emission factors applied

PCs LDVs HDVs Buses Mopeds Motorcycles
BC [mg/km] NA NA NA NA NA NA
PM2.5 4,05 4,05 20,5 20,5 1,62 1,62
PM10 7,50 7,50 38,0 34,2 3,00 3,00
TSP 15,0 15,0 76,0 76,0 6,00 6,00
Pb [µg/km] 0,00006 0,00006 0,00031 0,00006 0,00002 0,00002
Hg NA NA NA NA NA NA
Cd 0,000003 0,000003 0,000016 0,000003 0,000001 0,000001
As 0,00004 0,00004 0,00020 0,00004 0,00002 0,00002
Cr 0,00108 0,00108 0,00547 0,00108 0,00043 0,00043
Cu 0,00004 0,00004 0,00019 0,00004 0,00001 0,00001
Ni 0,00057 0,00057 0,00289 0,00057 0,00023 0,00023
Se NA NA NA NA NA NA
Zn 0,00129 0,00129 0,00654 0,00129 0,00052 0,00052

Table 2: Outcome of Key Category Analysis

for: TSP PM10 PM2.5
by: Level Level Level

Emissions from road abrasion are directly linked to driven mileage. Thus, the overall trend of emissions from road abrasion is similar to the trend for total driven mileage.

All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered.

Annual particulate matter emissions

Recalculations

With both activity data and emission factors unrevised, emission estimates remain unaltered compared to last year's submission.

For pollutant-specific information on recalculated emission estimates for Base Year and 2019, please see the recalculation tables following chapter 8.1 - Recalculations.

Planned improvements

Besides a routine revision of the underlying model, no specific improvements are planned.