随着生活水平的提高,汽车成了人们的代步工具,同时也带来日益严重的汽车尾气污染,汽车尾气污染主要是指从排气管排出的废气,废气中含有150~200种不同的化合物,扩散到空气中造成空气污染,其中对人危害最大的有一氧化碳、碳氢化合物、氮氧化合物、铅的化合物和碳的颗粒物,汽车所造成的空气污染占整个城市空气污染的60%,甚至到90%.因此汽车 With the improvement of living standards, cars have become people’s means of transport, but also bring increasingly serious vehicle exhaust pollution, vehicle exhaust pollution mainly refers to the exhaust gas discharged from the exhaust pipe, the exhaust contains 150 to 200 different compounds , Diffused into the air causing air pollution, of which the most harmful to people are carbon monoxide, hydrocarbons, nitrogen oxides, lead compounds and carbon particles, air pollution caused by cars accounts for 60% of the city’s air pollution, or even To 90%. So car