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The image displays a graph showing nitrogen oxide emissions in km/h at speeds from 0 to 130 km/h for diesel cars, gasoline cars, trucks, and buses. Diesel cars start at around 40, dropping to approximately 37 at 50 km/h, and end near 45 at 130 km/h. Gasoline cars start at about 10, fluctuate slightly, and end just below 8. Trucks begin at 35, decline steadily to 32 at 50 km/h, rise to nearly 40 at 90 km/h, and finish above 35. Buses initiate near 41, decrease to 30 at 50 km/h, rise steadily, concluding just below 50 at 130 km/h.
Given the complexity of the image, the above description may not be entirely accurate.
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The chart compares Nirtogen Oxide emissions (g/km)of four different vehicles at different speeds, highlighting distinct trends.
As seen in the graph, Diesel Cars declined further to roughly Diesel and Gasoline cars are the lowest emissions with the speed of 5 and 12.5 (g/km) respectively. The trucks show Nitrogen oxide emissions approximately 32.5 (g/km) at 10 (km/h) and gradually decrease emissions around 16 (g/km) at the speed of 90 (km/h) , steadily increase 25 (g/km) when it arrive to 130 (km/h). The buses decreased to around 25 tonnes at 60 (g/km) before increasing to approximately 43 (g/km) at 130 (km/h).
Overall, while per vehicle emissions approximately increase at 130 (km/h), only Diesel Cars emissions falls slightly.
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