On the last day of the last century, sandstorm blew from Hexi Corridor and affected part of the northwestern and northern China. On the second day of this century, Lanzhou's floating dust did not drop away. In the latest 50 years, Gansu Province has 46 strong sandstorms, 0.9 times per year. From 1995 to 2000, it appeared 17 times and averaged 2.8 times a year, but 9 times in 2000.

Sandstorm hit Alxa Right Banner in Inner Mongolia Autonomous Region on December 31st, 2000...

Sandstorm from northwestern and northern China began to hit Dalian on the afternoon of January 1st, 2001. In the next morning the micro-particles reached to the largest index. Eight of the 10 automatic monitoring points of the city exceeded the air pollution index of 200. Of them the highest is 496. On January 2nd, Dalian's air pollution index firstly reached to 292...