2月10日，西安钟楼笼罩在雾霾中。当日上午9时，西安市气象台发布雾霾橙色预警，预计未来24小时内西安地区可能出现能见度小于500米的雾霾，能见度低，空气质量差。据西安市环保局实时空气质量监测显示，当日西安部分地区PM2.5最高已超过800微克/立方米。新华社记者 李一博 摄 February 10,Xi 'an bell tower shrouded in fog in the haze.Day 9 am,Xi an observatory issued fog haze orange early warning,The expected future within 24 hours of the xi 'an region may appear visibility of less than 500 meters of fog haze,Low visibility,Air quality is poor.According to xi an epa real-time air quality monitoring display,The parts of the highest PM2.5 xian has more than 800 micrograms per cubic meter.The xinhua news agency LiYiBo perturbation

    2月10日，西安钟楼笼罩在雾霾中。新华社记者 李一博 摄 February 10,Xi 'an bell tower shrouded in fog in the haze.The xinhua news agency LiYiBo perturbation

    2月10日，西安鼓楼笼罩在雾霾中。新华社记者 李一博 摄 February 10,Xian drum tower shrouded in fog in the haze.The xinhua news agency LiYiBo perturbation