You think a city cyclist will sniff the air pollution than others. In fact, according to a study done by the University of London. The researchers discovered that the passengers in taxis, cars and buses breathe more pollution of cyclists and pedestrians. On average, passengers in the taxi were exposed more than 100,000 grains of dust, it damages lung cells. Car passengers breathe under 40,000 dust particles in inhaled bus about 100,000. Cyclists just exposed to only 8,000 dust particles. It is thought that cyclists inhale less smoke because they ride on the edge of the road and are not in direct contact with the exhaust fumes.
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