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The image displays nitrogen oxide emissions (g/km) data by speed (kph) for four vehicles: Buses, Lorries, Petrol cars, Diesel cars. Buses: 10kph: 40g/km, 20kph: 36g/km, 30kph: 33g/km, 40kph: 30g/km, 50kph: 28g/km, 60kph: 27g/km, 70kph: 27g/km, 80kph: 29g/km, 90kph: 31g/km, 100kph: 34g/km, 110kph: 37g/km, 120kph: 40g/km, 130kph: 43g/km. Lorries: 10kph: 33g/km, 20kph: 30g/km, 30kph: 27g/km, 40kph: 25g/km, 50kph: 22g/km, 60kph: 18g/km, 70kph: 16g/km, 80kph: 18g/km, 90kph: 20g/km, 100kph: 22g/km, 110kph: 24g/km, 120kph: 26g/km, 130kph: 28g/km. Petrol cars: Between 10-130kph: consistently 10g/km. Diesel cars: 10kph: 7g/km, 20kph: 6g/km, 30kph: 5g/km, 40kph: 5g/km, 50kph: 5g/km, 60kph: 5g/km, 70kph: 5g/km, 80kph: 5g/km, 90kph: 6g/km, 100kph: 6g/km, 110kph: 7g/km, 120kph: 7g/km, 130kph: 8g/km.
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The line graph compares the production of nitrogen oxide emissions by four different vehicles.
Overall, the buses, which were dominant in releasing gasses had significant decline before rising, regarding lorries it is noteworthy that it went down, before uplifting. Diesel cars were the least, that harmed environment.
Turning to the details, it is clearly seen that buses exported gas emissions significantly more than any other transport accounting for approximately 40 g/km of emission at the speed of 10 kph. This figure then decreased gradually to a low of around 25 g/km at the speed of 60, before rising to nearly 45 g/km. The same pattern was observed for lorries, which started producing nitrogen oxide around of 32 g/km, dropped moderately to 15 g/km, before uplifting to 25 g/km.
In contrast, diesel car was the least in terms of generating nitrogen oxide emissions fluctuating slightly from nearly 7 g/km to 5 g/km. As regards og petrol car the figure is remaining stable at approximately 10 g/km.
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