Air pollution, being the largest cause of premature death in urban Europe, is bringing massive concern to not only European Commission professionals but also for EU citizens. Transport has continuously been the main source of this air pollution, and it is high on the agenda for environmental reforms. In 2013, 68,000 premature deaths were caused by nitrogen dioxide, which was mostly produced by traffic. In the same year, small particulate matter killed 436,000 people. Burning fossil fuels causes this matter; which then enter the bloodstream and lungs.