First generation action has taken roots but the city has yet to meet the clean air standards. Kolkata is making efforts to reduce air pollution – its decision to phase out 15-year-old commercial vehicles from plying within the Kolkata Metropolitan Area and to make a transition from old polluting two-stroke engines to cleaner four-stroke engines running on LPG are steps in the right direction. But much more will have to be done. Policy decisions and action so far in the city
Action on vehicles
The city has introduced Bharat Stage IV norms for vehicles in 2010
Selling of pre-mixed 2-T oil made mandatory within Kolkata Metropolitan Area
Introduced 50 ppm sulphur fuels
Benzene content in petrol reduced to 1 percent
Petrol blended with 5 percent ethanol mandatory since January 2003
Only LPG driven three wheelers are registered in Kolkata since June 2003
Up gradation of PUC emission testing centers
Two-stroke autorickshaws banned
Action on industry
Stricter location policy for new industrial units and restriction on setting up of polluting industries in municipal area of Kolkata Metropolitan Area (KMA)
Efforts to ensure regulatory compliance for grossly polluting industries
Introduction of stricter emission standards for boilers, ceramic kilns, foundries and rolling mill of KMA
Mandatory use of clean fuels
Financial assistance for installation of pollution control devices in small-scale industries etc.
Regularly complying industries are felicitated with Environmental excellence awards.
M/s Coal India Ltd. , M/s Eastern Coalfield Ltd., M/s Bharat Coking Coal Ltd. have been requested not to supply coal to the industries which have been ordered to discontinue the use of coal.
About 67 percent of the coal fired boilers and about 73 percent of the coal fired ceramic kilns have already been converted to oil fired ones.