1月16日拍摄的雾霾笼罩的上海外滩。受15日夜间弱冷空气南下影响，上海16日空气质量为重度污染。上海市环境监测中心监测数据显示，1月16日14时上海10个监测点的空气质量指数（AQI）均超过200，全市平均空气质量指数为231，这是10天内上海空气质量第二次达到重度污染水平。新华社发（李铭珅 摄） On January 16, shooting of fog haze in the bund.By 15 night weak cold air influence south,Shanghai 16 air quality for severe pollution.Shanghai environmental monitoring center monitoring data shows,On January 16, when ten monitoring stations in Shanghai and the air quality index(AQI)Are more than 200,The average air quality index for 231,This is ten days Shanghai air quality for the second time to severe pollution level.The xinhua news agency hair(LiMingShen perturbation)

1月16日拍摄的雾霾笼罩的上海浦东。新华社发（丁汀 摄） On January 16, shooting of fog haze in Shanghai pudong.The xinhua news agency hair(DingTing perturbation)