The line graph illustrates information about the amount of nitrogen oxide emissions at various speeds made by four different transports (Buses, Lorries, Petrol car, and Diesel car). Units are measured in g/km.
Overall, it is apparent that Buses and Lorries have a significant impact on production nitrogen oxide emission depending on speed. If we look at specifically, Buses reach at peak beginning point and they drop slightly even reach highest positions. Lorries also have similar but this patterns merely dropping up to centre of speedometer prior to growth. Petrol car and Diesel car both of these almost remain stable apart from minor changes.
Buses are the highest figure,too,observe the largest emissions. They can reach at peak in 10 kph with 40 as the ending speed. Nevertheless, this figure begins to decreasing gradually until 50 kph and that time their own nitrogen oxide emissions amount almost just over 30. After all, this trend again begins to flying at the ending point (130 kph), they reach roughly 44 which this is record for whole graph.
Moreover, lorries lead to going down until 90. Surprisingly, their beginning (10 kmph) emissions (33 g/km) higher than other speed. Even though, after 90 kph with 50 g/km, they start to significantly increase with reaching 25 g/km.
Petrol and Diesel car, they depict almost without any changes except little modifications, highlighting one at 10 kph petrol and diesel take soar to 10 and lost to 5 respectively, after that both of these remain stable without changes, apart from in Petrol cars increase to approximately 12 at 130 kph.