摘要
MEETING SMOG CONTROL GOAL Caijing January 19The Beijing Municipal Environmental Protection Bureau published the citys 2014 air pollution control results on January 4. The results show the volume of PM2.5 （airborne particles smaller than 2.5 microns in diameter） declined by 4 percent. The number of days recording heavy pollution dropped by 13 year on year.
MEETING SMOG CONTROL GOAL Caijing January 19The Beijing Municipal Environmental Protection Bureau published the citys 2014 air pollution control results on January 4. The results show the volume of PM2.5 （airborne particles smaller than 2.5 microns in diameter） declined by 4 percent. The number of days recording heavy pollution dropped by 13 year on year.
