Beijing, Hebei, Henan issued a notice before the start, the heavy air pollution warning. Beijing will be December 30, 2016 0 to 24 on January 1, 2017, the start of heavy air pollution orange warning. Central and southern Hebei, the Middle East will be 29 from the time of 22, respectively, to start the region of heavy pollution weather red (level I), orange (II) emergency response. Henan Province, Zhengzhou, Puyang, Xinxiang, Anyang, Hebi, Luoyang City, 7 provincial cities and Gongyi, Huaxian, Lankao, Changyuan 4 provincial governing county (city) and air port, from at 0:00 on December 30th to January 5, 2017, to start red alert in response to heavy pollution weather. Jiaozuo, Pingdingshan, Sanmenxia, Xuchang, Luohe, Jiyuan, Shangqiu 7 cities and Ruzhou, Yongcheng 2 provincial governing county (city), from December 29th 15 to January 5, 2017, start heavy pollution emergency response orange signal warning. Anticorrosive tile. Hebei, Henan start heavy pollution warning