China News Agency, Zhengzhou, October 26 (reporter Dongfei) PM2.5 (particulate) in 26%, 20% is industrial pollution, coal, motor vehicle pollution each accounted for 19%, accounted for 16% of the other. " 26 PM, in Zhengzhou City, city, held a functional service air pollution control symposium, the Zhengzhou Municipal Environmental Protection Bureau Pan Bing disclosed the proportion of the city's pollution sources in 2014. According to China ring...