Most polluted countries are in Asia.

According to a new report 99 cities with the world’s worst air pollution were in Asia.
That signifies that billions of people’s health is at a serious risk.
83 of the cities exceeded the World health organization’s guidelines and were located in India.
Begusarai was the most polluted city with a total of half a million people residing there.
Last year the air quality in Bangladesh exceeded the safety guidelines by 16 times making it the world’s most polluted country,in the world.
Followed closely by India and Pakistan.
Central and South Asia were the worst performing regions,globally.