what are the causes of automobile pollution?

Answer 1

Fossil fuels being burnt. No matter how far technology goes, burning a fossil fuel will always cause pollution. All we can do is make the engines more efficient to reduce the levels they produce.

Answer 2

The problems inherent to automobile transportation stem from the use of gasoline for power. The burning of cheap, ordinary gasoline gives off primarily three pollutants: hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NO). These products contribute greatly to smog, ozone, cancer, lung disease, illness, and the greenhouse effect. In cities such as Los Angeles, California, the problem is extremely apparent as the city is covered in smog much of the time. Ozone, carbon monoxide, and nitrogen oxides all take away from people's health through destroying tissue, inducing breathing problems, and sometimes leading to cancer.

While the dangers of air pollution are clear still, the industries have been making significant improvements compared to the 1960s, when no attempt was made to limit automotive air pollution. The number of automobiles on the road is increasing by the year. And still, hydrocarbon emissions are down almost 98% from 1960s levels, while carbon monoxide levels are down 96% and nitrogen oxides are down 90%. Smog and air quality levels are changing for the better in major cities. The pollution from automobiles is actually coming from only a small group of "grossly polluting", newer cars, however, as about 10% of cars on the road are accounting for 50% of all harmful emissions put out by automobiles. Studies and analysis shows that, in fact, automobiles are becoming less of the major contributor to air pollution. Instead, other fuel-driven, stationary systems-- including factories and oil refineries- are becoming the predominate contributors to harmful emissions. The extremely high emissions levels of airplanes and airports are also gaining concern, as in airports like the Los Angeles International Airport (LAX) where airplane-produced emissions are one of the largest sources of smog in the entire city. Questions also arise about the emissions produced by such accessories as air conditioners within cars, and how one can discern where the problem is truly located and should be corrected. While there still remains a clear problem with automobile-produced emissions into the air, the efforts for change will be cheaper and more effective if directed toward the other harmful, emission-producing systems.

Answer 3

Carbon Dioxide that comes out of the exhaust.