这是雾霾笼罩下的故宫（1月23日摄）。雾霾再次“席卷”京城，23日9时实况监测显示，北京城区空气质量再次达到最严重的六级严重污染。气象部门表示，23日白天，北京大部分地区仍大雾弥漫，东南部可能出现能见度不足500米的雾和能见度小于3000米的霾，建议市民减少外出。预计23日傍晚前后随着一股冷空气南压，北京将出现四五级的北风，届时有望吹散雾霾，明显改善空气质量。新华社发（贺灿铃摄） This is the fog shrouded haze of the imperial palace(On January 23, taken).Fog haze again"across"city,23 and the live monitoring display,The Beijing city air quality to achieve the most serious six levels of serious pollution.Meteorological department said,23 the day,Beijing most of the region is still thick fog diffuse,Southeast possible visibility of less than 500 meters of fog and visibility is less than 3000 meters of haze,Proposal citizen reduce go out.Is expected to 23 before and after the evening with a cold air pressure in the south,Beijing will appear four category five of the north wind,At the appointed time is expected to blow away the fog haze,Obviously improve air quality.The xinhua news agency hair(HeCanLing perturbation)

     1月23日俯拍的北京国贸附近的场景。新华社记者 王申 摄  On January 23, high Angle shot Beijing itc near the scene.The xinhua news agency WangShen perturbation

     北海白塔在雾霾中若隐若现（1月23日摄）。  新华社发（贺灿铃摄）  The north sea white tower in the fog in the haze is like concealed(On January 23, taken).  The xinhua news agency hair(HeCanLing perturbation)

     1月23日拍摄的故宫。新华社记者 王申 摄  On January 23, shooting of the Forbidden City.The xinhua news agency WangShen perturbation

     1月23日俯拍的北京国贸附近的场景。新华社记者 王申 摄  On January 23, high Angle shot Beijing itc near the scene.The xinhua news agency WangShen perturbation

     1月23日俯拍的北京国贸附近的场景。新华社记者 王申 摄  On January 23, high Angle shot Beijing itc near the scene.The xinhua news agency WangShen perturbation