How safe is the air we breath?

Source :  https://www.123rf.com/stock-photo/air_pollution.html Air is essential for the surveillance of living creatures. We have to think whether we are breathing a safe air. Are we aware of the fact that nine out of ten humans are breathing the air that exceeds the limit of pollutants? we are not. It is estimated that air pollution causes close to seven million deaths worldwide yearly. (WHO) The sad fact is that its really affecting kids. Bad air destroys a healthy future generation. Source : https://www.ccacoalition.org/en/news/world-health-organization-releases-new-global-air-pollution-data   There are many causes for this air pollution. Transportation, Industries, Waste, Household activities, Agriculture practices all these leads to pollution. This can be reduced only by the combined action of individuals, government and by the entire country. Lack of awareness among people is the root cause of all these issues. Because most of the people are not aware or not even concern