SHANGHAI, Sept. 25 (SMM) –On Sep 24th, Tangshan Government released Notification on Launching Emergent Emission Reduction Measures for Heavy Pollution Days, which decides from 0 am Sep 25th, all emergent measures will be launched. Those measures  of emergency reduction mainly include: the steel companies should do PSF and the sintering machine should limit production by 50%; coking companies should prolong the coke discharging time to over 36 hours; construction and removal sites and in Lunan, Lubei and Hi-tech Development District should stop earth work without exception.