Air pollution and its impact on human health?

Air pollution usually refers to the phenomenon that some substances enter the atmosphere due to human activities or natural processes and show sufficient concentration in sufficient time, thus endangering human comfort, health or the environment. The causes of air pollution are natural factors (such as forest fires and volcanic eruptions). ) and human factors (such as industrial waste gas, domestic coal burning, automobile exhaust, garbage incineration, nuclear explosion, etc. ), and the latter is the main, especially caused by industrial production and transportation.

Air pollution is very serious. Anything that can make the air quality worse is an air pollutant. At present, there are about 100 kinds of air pollutants, which can be divided into two types according to their existing state: one is aerosol pollutants, and the other is gas pollutants. Aerosol pollutants mainly include dust, smoke droplets, fog, dustfall, floating dust and suspended solids. Gaseous pollutants mainly include sulfur oxides mainly with sulfur dioxide, nitrogen oxides mainly with nitrogen dioxide, carbon oxides mainly with carbon dioxide and hydrocarbons combined with hydrocarbons.