Correção de texto: Smog in China

Smog in China has been a huge problem in big cities as Beijing, Shangai and many others.
I grew up in Shangai and spent many years to cure my respiratory problems. I used to take many pills with no solution.
When I got married, We moved into small city and my health problem despaired!

Last years, the government is spending millions of dollars to change this situation in China.
According to the World Health Organization, the air quality in China is below than normal.