I can not breathe this year is the 13th year since live in Beijing, I feel that the air is getting worse year by year. first 4year I live in doom in college, that located in the central of the city. I frequently ride bicycle go toe somewhere, in that time, I did not feel so much difference with my hometown where is rural area, after graduate, I got a job working as an auditor, I got lot of chance to go business trip, when my return to Beijing, at the moment of getting off the plan in airport, I can feel the mouth of breath is a little pungent , until last winter, the atmosphere pollution in here can not be bad to worse, people can't go out without masks, all the city surrounded with dirty fog, even the vision is so limited, now summer is soon, but the clear and blue sky is seldom, still most of day is grey and the fresh air is hardly can be breathe. yesterday. one of my friend back from Japan in few many years, he says he can't stay here for long because of the air, he want to go back to the Japan.