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Average on-road nitrogen oxide (NOx) emissions (in g/km)

Chapter 6 chart Average on-road nitrogen oxide emissions (in g/km)

Nitrogen oxide (NOx) emission limits for new diesel cars dropped from 0.5 g/km in 2000 to 0.08 g/km in 2014. However, recent data from on-road Remote Sensing confirms that for real-world driving conditions, NOx emissions decreased much slower than originally expected. Real-world NOx emissions for gasoline cars are significantly lower and decreased in line with the emission limits.