1月11日上午9时56分，北京天安门广场被雾霾笼罩。 On January 11, in the morning and 56 minutes,Beijing tiananmen square was fog haze shrouded.当日上午8时，北京空气质量监测数据显示，北京无论城区、郊区还是交通环境评价点，其代表的全部区域被意味着最严重污染的“深褐色”覆盖，pm2.5指数达到240到446之间，属六级严重污染。 Day morning 8,Beijing's air quality monitoring data shows,Beijing city no matter/Suburb or the traffic environmental assessment point,The representative of the whole area is means that the most serious pollution"Dark brown"cover,Pm2.5 index to between 240 and 446,Belong to six levels of serious pollution.新华社发（杨乐 摄） The xinhua news agency hair(YangLe perturbation)

1月11日上午9时34分，北京天安门广场被雾霾笼罩。 On January 11, 9 am 34 points,Beijing tiananmen square was fog haze shrouded.新华社发（杨乐 摄） The xinhua news agency hair(YangLe perturbation)

1月11日晨，行人车辆在大雾中经过宣武门路口。 On January 11, in the morning,Traffic in the heavy fog after at intersection.新华社发（贺灿铃 摄） The xinhua news agency hair(HeCanLing perturbation)