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Explaining vehicle emissions – why do laboratory and road measurements differ?

News Published 27 Jan 2016 Last modified 21 Jun 2016

2 min read

Photo: © frankieleon

The road transport sector is a major contributor to Europe’s emissions of greenhouse gases and air pollution. For certain pollutants, vehicles can emit substantially higher emissions on the road than official emissions tested in laboratories. A report released today by the European Environment Agency (EEA) provides a non-technical guide that describes the reasons for these often significant discrepancies.