How much influence does automobile exhaust have on air pollution?

To say that automobile exhaust pollutes the atmosphere, I don't think it can be simply measured. This problem has been raised for many years, and the increasingly serious smog also shows that exhaust gas is more and more harmful to the atmosphere, seriously affecting air quality.

So now we advocate green travel. In some places, buses have used lithium-ion batteries, and bicycles have entered 100 cities. None of these examples proves the importance of green travel. Summer is not obvious, because the temperature is high, it will not form smog, and it can be clearly felt in late autumn and early winter. The smog continues, visibility is very low, and pedestrians on the street wear several layers of anti-fog masks to cover the respiratory system. But even so, in winter, there are still many people in the hospital, and there are many symptoms such as respiratory infection, cold and throat discomfort. These are all hazards caused by waste gas. In the long run, it will be worse, so for our own health and the health of our families, we advocate green travel.