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Steps taken by the Government of India to control air pollution include
A
Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks
B
Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel
C
Compulsory PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons
D
Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
Detailed Solution
Every petrol-driven vehicle must have a valid PUC (Pollution Under Control) certificate; the test measures the carbon monoxide and hydrocarbons in the exhaust. This is a compulsory step taken by the government.
CNG was made compulsory only for public transport buses in Delhi (by the end of 2002), not for all buses and trucks in the country.
There is no compulsory mixing of 20% alcohol with petrol or 20% biodiesel with diesel.
The norms prescribe much lower sulphur levels (350 ppm and then 50 ppm in diesel under the Euro norms), not simply a 500 ppm limit.
Hence the correct step is compulsory PUC certification of petrol-driven vehicles.
CNG was made compulsory only for public transport buses in Delhi (by the end of 2002), not for all buses and trucks in the country.
There is no compulsory mixing of 20% alcohol with petrol or 20% biodiesel with diesel.
The norms prescribe much lower sulphur levels (350 ppm and then 50 ppm in diesel under the Euro norms), not simply a 500 ppm limit.
Hence the correct step is compulsory PUC certification of petrol-driven vehicles.