2016 Emission factors for diesel Euro-6 passenger cars, light commercial vehicles and Euro-VI trucks
report
The importance of emission factors for air quality measurements
A frequent monitoring of the air quality is needed to ensure a healthy living environment. In the Netherlands, the air quality is monitored through direct measurements in a program called ‘Landelijk Meetnet Luchtkwaliteit’. Additionally, calculations of the air quality are performed annually. These calculations make use of air quality models, which are based on various input parameters.
The air quality in the Netherlands is to a large extend determined by road traffic. In order to make a reliable estimate of the influence of road traffic on the air quality, several factors have to be taken into account: the average fleet composition (how many vehicles drive in the Netherlands?), the distance covered (how many kilometres do these vehicles drive on average?) and the real-life emissions per vehicle (what is the average pollution per kilometre of each of these vehicles?). The average real-life emissions per vehicle are expressed in so-called emission factors.
The Dutch emission registration makes an inventory of the yearly emissions in the Netherlands, partly based on traffic emission factors. The emission factors are also used to determine the nitrogen deposition in nature. The official average emission factors are to published by the government, the underlying details are reported in same year by the National Bureau of Statistics (CBS).
The Dutch vehicle fleet is continuously evolving due to ageing of vehicles, the introduction of new models etc. Changes in the fleet composition will affect the overall emission factors. It is important that the emission factors take into account the changes in the fleet, to ensure a reliable assessment of the air quality. They are therefore evaluated annually, and adjusted if necessary, based on the most recent insights.
A frequent monitoring of the air quality is needed to ensure a healthy living environment. In the Netherlands, the air quality is monitored through direct measurements in a program called ‘Landelijk Meetnet Luchtkwaliteit’. Additionally, calculations of the air quality are performed annually. These calculations make use of air quality models, which are based on various input parameters.
The air quality in the Netherlands is to a large extend determined by road traffic. In order to make a reliable estimate of the influence of road traffic on the air quality, several factors have to be taken into account: the average fleet composition (how many vehicles drive in the Netherlands?), the distance covered (how many kilometres do these vehicles drive on average?) and the real-life emissions per vehicle (what is the average pollution per kilometre of each of these vehicles?). The average real-life emissions per vehicle are expressed in so-called emission factors.
The Dutch emission registration makes an inventory of the yearly emissions in the Netherlands, partly based on traffic emission factors. The emission factors are also used to determine the nitrogen deposition in nature. The official average emission factors are to published by the government, the underlying details are reported in same year by the National Bureau of Statistics (CBS).
The Dutch vehicle fleet is continuously evolving due to ageing of vehicles, the introduction of new models etc. Changes in the fleet composition will affect the overall emission factors. It is important that the emission factors take into account the changes in the fleet, to ensure a reliable assessment of the air quality. They are therefore evaluated annually, and adjusted if necessary, based on the most recent insights.
Topics
TNO Identifier
533576
Publisher
TNO
Collation
42 p.
Place of publication
Delft