Chinese air pollution

The word pollution could be used in some places to means pure become dirty. Chinese air pollution has been affecting (you want to use the word effecting and you must use it with a something it is effecting.) Example:  Chinese air pollution has been effecting residents' health in some big cities, like Beijing and Shanghai. In Shanghai, children don't are not allowed outside, schools are closed due to the air pollution. As we know better(You might want to say Smog is a word we know better) is smog, a mixture  of smoke and fog. They air is posion, it's threatens citizens' health, so officials have decided to change it. They have closed some factories which produce lots of smoke,and greenner cars have priority on the roads. Through this method, we will decrease particles. The Chinese are also beginning to use renewable energy. Officials feel confident it will change, our air will become pure again.

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