The four-colour classification scheme of industrial sectors based on the Pollution Index (PI) which is a function of the (i) Emissions (air pollutants) (ii) Effluents (water pollutants) (iii) hazardous wastes generated and (iv) Consumption of resources.
Key Points
The PI of any industrial sector is a number ranging from 0 to 100. Increasing value of PI denotes the increasing degree of pollution load from the industrial sector.
Based on the on ‘Range of Pollution Index‘, industrial sectors have been categorised into four colours category.
Red category: PI score of 60 and above. These are severe polluting industries. Total 60 industries including sugar, thermal power plants, paints and others are under in it.
Orange category: PI score of 41 to 59. They moderately polluting industries. Total 83 industries like coal, washeries and automobile servicing are placed under it.
Green category: PI score of 21 to 40. They are significantly low polluting industries. Total 63 industries are under in it.
White category: PI score below and upto 20. They are non-polluting industries. Total 30 industries are under in it. These industries are exempted from requirement of environmental clearance.
Current Affairs 7th March, 2016 Highlights of Union Budget 2016-17 Highlights of Railway Budget 2016
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