Recent foul smelling air in part of the city, caused by a gas leak at a nearby oil refinery, according to the Shanghai Daily, has compounded the pollution woes.

Air pollution in Beijing reached hazardous levels on Saturday as smog engulfed large parts of China despite efforts to clean up the foul air.

The pollution situation of straw pulp papermaking industry in our province were analyzed, and the treatment technology of foul water in straw pulp papermaking industry was discussed.