How to protect me out of the pollution?

Now, some places in the world still pollution. But people in those city always want to protect them self out of this problem. And in the government, they are tried to find the way resolve. Why did Vietnam polluted? Because about some people don’t have sense of civic responsibility. They throw the trash out of street, down the water. Make water polluted. Water turned to cloud, make the polluted rain. Another one, the factory uses that water, and when it’s dirty, they give out to the river. And smoke from cars and factory. That‘s all the problem make the city polluted. About me, I think when go out, I can wear the mask and something else to protect my face out of smoke. And people need to have responsibility to the city. , they can use something to replace the thing make smoke, they can recycle the trash, don’t need to burn. That’s all thing I want to protect me out of pollution.