Methoden voor de berekening van de emissies door mobiele ... - CBS

changed in the Netherlands in 1999 [ref 64: Machrafi and Mertens, 1999] it was decided to implement the
changes based on analyses in Belgium [ref 63: FAPETRO, 2000] in the expectation of the research in the
Netherlands, which hopefully will be conducted in the near future. According to European legislation,
every Member State must report on fuel quality during the previous year on June the 30 th of every
year. The Dutch monitoring results are published on the EU-website. Table 1D below shows the
emission profiles for the statistical year 1999 and before, and for the statistical year 2000 and
afterwards.
Table 1D Emission profile for the emission of benzene (percentage by weight)
Petrol Petrol vapour
1999 and 2000 and
1999 and 2000 and
before later
before later
Benzene 1) 2.5 0.8 1 0.3
Toluene 15 12.5 3 2.5
Xylene - - 0.5 0.5
Aliphatic hydrocarbons (non-halogenated) 35 60 95 97
Aromatic hydrocarbons (non-halogenated) 65 40 5 3
1)
A factor of 1.2 was used to convert the volume percentage of benzene to the weight percentage.
1.7.3 Particulate matter emission (non-combustion)
1.7.3 Particulate matter emission
Heavy metal emissions from wear of tyres, brakes and the road surface
The heavy metal composition of particulate matter emission due to wear is shown in Table 1.29B. The
data in this table concerning brake wear originate from the fact sheet "emissions from brake linings"
[ref 107: RWS-Waterdienst].
1.8 Regionalization
Regarding the vehicle kilometres travelled outside the urban area, regionalization of data is based on
traffic intensities. Emissions within the urban area are allocated based on the number of residents.
Road traffic
combustion,
tyre wear,
evaporation,
leakage of
motor oil
Allocation parameter
1. motorways (national trunk roads): vehicle km per
road section
2. provincial roads: vehicle km per road section
3. within the urban area: population density
(500*500m)
37
Update frequency
Every three years, most
recently in 2006 (data
for 2004)
The locations and lengths of the road sections originate from the Nationaal Wegen Bestand 14 (NWB)
that is managed by the DG for Public Works and Water Management-DVS.
The intensities on motorways have been calculated on the basis of DVS traffic counts.
For the traffic intensities on the provincial roads and in urban areas the information originates from the
‘New Regional Model’ (NRM), which is under supervision of DVS. Besides traffic counts this model
also uses social economic and demographic factors as population density and composition, existing
employment and type of businesses in the vicinity. In case of intensities within urban urban area, data
has been used originating from municipal environmental traffic maps. The results of the NRM (New
regional model) originate from PBL/LOK (Local environment team of the Netherlands Environmental
Assessment Agency), where they are used as input for noise calculations. Various documents about
the spatial allocation of emissions can be found on the Emission Registration site.
14 National Road Database