这是大雾中的北四环惠新东桥（11月16日摄）。北京市气象台16日7时55分发布大雾黄色预警，目前近地面层空气湿度大，大部分地区能见度较差，个别地区能见度不足500米，预计3小时内大部分地区仍有雾。10时以后随着冷空气南下，大雾将逐渐消散。新华社记者 王申 摄     This is the north fourth ring road.the fog hui new dongqiao(November 16 perturbation).The Beijing meteorological observatory 16 at 7 55 points issued the fog yellow warning,At present ground layer air humidity is big,Most of the areas with poor visibility,Individual areas of visibility of less than 500 meters,Three hours is expected to most areas still have fog.After 10 with cold air down,The fog will gradually dissipate.Xinhua news agency reporters WangShen perturbation

这是大雾中的北四环惠新东桥（11月16日摄）。新华社记者 王申 摄 This is the north fourth ring road.the fog hui new dongqiao(November 16 perturbation).Xinhua news agency reporters WangShen perturbation