Table of Contents

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

Click to view Legend

Click to hide Legend

Method(s) applied
D Default
T1 Tier 1 / Simple Methodology *
T2 Tier 2*
T3 Tier 3 / Detailed Methodology *
C CORINAIR
CS Country Specific
M Model
* as described in the EMEP/EEA Emission Inventory Guidebook - 2019, in category chapters.
(source for) Activity Data
NS National Statistics
RS Regional Statistics
IS International Statistics
PS Plant Specific
As Associations, business organisations
Q specific Questionnaires (or surveys)
M Model / Modelled
C Confidential
(source for) Emission Factors
D Default (EMEP Guidebook)
CS Country Specific
PS Plant Specific
M Model / Modelled
C Confidential
NOx NMVOC SO2 NH3 PM2.5 PM10 TSP BC CO Pb Cd Hg As Cr Cu Ni Se Zn POPs
NA NA NA NA L/- L/- L/- NE -/- -/- -/- NA -/- -/- -/- -/- NE -/- NA

Click to view Legend

Click to hide Legend

L/- key source by Level only
-/T key source by Trend only
L/T key source by both Level and Trend
-/- no key source for this pollutant
IE emission of specific pollutant Included Elsewhere (i.e. in another category)
NE emission of specific pollutant Not Estimated (yet)
NA specific pollutant not emitted from this source or activity = Not Applicable
* no analysis done

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
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
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
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.

Here, as described for tyre and brake wear, after a moderate decrease during the Covid-19 pandemic, mileage related abrasive emissions show a slow recovery not yet reaching pre-pandemic levels again.

Annual particulate matter emissions from road-surface wear. Annual PM2.5 emissions from road-surface wear.

Recalculations

Compared to last year's submission, emission estimates have been revised due to updated mileage data (see super-ordinate chapter).

Table 3: Revised emission estimates for particulate matter, in [kt]

1990 1995 2000 2005 2010 2015 2016 2017 2018 2019 2020 2021
PM2.5
current submission 3.392 3.724 3.770 3.871 4.126 4.205 4.253 4.289 4.294 3.830 3.871
previous submission 3.392 3.724 3.770 3.871 4.125 4.204 4.252 4.288 4.293 3.830 3.865
absolute change 0.000 0.000 0.000 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.007
relative change 0.00% 0.00% 0.01% 0.02% 0.03% 0.02% 0.02% 0.02% 0.02% 0.02% 0.17%
PM10
current submission 6.266 6.881 6.967 7.153 7.623 7.767 7.859 7.925 7.935 7.082 7.157
previous submission 6.266 6.881 6.966 7.152 7.621 7.765 7.857 7.923 7.934 7.081 7.146
absolute change 0.000 0.000 0.000 0.001 0.002 0.002 0.002 0.002 0.002 0.001 0.011
relative change 0.00% 0.00% 0.01% 0.02% 0.02% 0.02% 0.02% 0.02% 0.02% 0.02% 0.15%
Total Suspended Particles (TSP)
current submission 10.795 12.562 13.793 13.965 14.338 15.283 15.574 15.752 15.884 15.905 14.187 14.338
previous submission 10.795 12.562 13.793 13.964 14.335 15.279 15.570 15.749 15.880 15.902 14.183 14.314
absolute change 0.000 0.000 0.000 0.001 0.003 0.004 0.004 0.004 0.003 0.003 0.003 0.024
relative change 0.00% 0.00% 0.00% 0.01% 0.02% 0.03% 0.02% 0.02% 0.02% 0.02% 0.02% 0.17%

For pollutant-specific information on recalculated emission estimates for Base Year and 2021, 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.