Figure

Trends in diesel NOX emission factors and type approval emission standards

Figure Created 23 Nov 2012 Published 27 Nov 2012 Last modified 29 Nov 2012

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Topics: Transport

The figure shows the change in real-world NOx emission factors in urban conditions for diesel cars with different Euro standards along with the change in the type-approval standards

https://www.eea.europa.eu/data-and-maps/figures/trends-in-diesel-nox-emission/trends-in-diesel-nox-emission/image_large

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Rights:: EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (https://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
Owners:: European Environment Agency (EEA)
Figure type:: Graph

Additional information

care is needed when interpreting this figure. The NOx emissions limit for a Euro 2 diesel car is deduced as the limit was set for combined pollutants (HC + NOx) and the test procedure changed between Euro 2 and Euro 3. The trend of NOx emission factors is based on emission functions provided by COPERT 4 at speed 33.6 km/h.

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