NORMS FOR EMISSION OF SOx, NOx, SPM & MERCURY FROM THERMAL POWER PLANTS
The notification from MoEF & CC dated 7th December-2015 amends existing norms related to emission of SPM and introduces new norms for emission of SO2, NOx and Mercury from Thermal Power Plants (TPPs). I t also specifies modified limits for specific water consumption by TPPs. To convert existing once through based condenser cooling system to recirculation type. Different limits are specified based on capacity of power plant and year of installation. NEW REGULATIONS ON EMISSION A summary of new regulations on air emission is given in below: Date of Installation PM SO2 Nox Mercury (Hg) Before 31-12 -2003 100 mg/Nm3 600 mg/Nm3 for <500MW 600 mg/Nm3 0.03 mg/Nm3 for >=500MW 200 mg/Nm3 for >=500MW After 01-01-2003 & Upto 31-12-2016 50 mg/Nm3 600 mg/Nm3 for <500 MW 300 mg/Nm3 0.03 mg/Nm3 for >=5