According to the latest global assessment, air pollution almost affects every aspect of health, organs and cells in the human body.
Air pollution causes more than 3 million people to die prematurely each year, threatening almost all major city residents in developing countries.
In a recent announcement, WHO estimated that in 2012, there were 7 million deaths related to global air pollution.
The World Health Organization (WHO) on April 8 warned that the threat from air pollution was much greater than previously reported, and repeated the global call to action to