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Table 1 : Industrial coal consumption in Calcutta, 1989-90

No.of Coal consumption Rank Industry units (t/a)
1 Engineering, etc. 277 89,208 2 Forging 24 83,580 3 Rerolling machinery 129 76,428 4 Glass 21 70,680 5 Jute 18 61,776 6 Chemical 86 56,580 7 Ceramics 49 46,812 8 Paper 18 46,296 9 Vanaspathi oil 29 44,424 10 Rubber 110 35,820 11 Refectories 12 13,548 12 Life-saving drugs 14 7,212 13 Others 5 58 265,596
Total 1,451 933,960
Total Industrial Coal Supply, 1980,90: 2,1 00,000 t/a Projected Total Industrial Coal Supply, 2000-01: 3,600,000 t/a
Table 2:Industrial emissions in Calcutta, 1977-78


No.of Slphur dioxide SPM Carbon monoxide units -------------- ------------- --------------- Industry surveyed (t/a) % (t/a) % (t/a) %
Thermal power plant 2 5,475 34 56,575 44 1,095 5 Chemical 172 1,825 11 20,440 15 6,570 25 Engineering 105 1,825 11 11,315 9 3,650 14 Rubber 80 365 3 9,855 7 3,285 14 Glass and ceramic 36 365 3 6,205 5 2,190 9 Textile 57 365 3 5,840 4 1,825 7 Jute 10 365 3 5,840 4 1,825 7 Paper 11 365 3 1,825 1 730 2 Miscellaneous 135 5,110 29 14,600 11 4,745 18
Total 608 16,060 132,495 25,915
Note : Owing to rounding, percentage totals may not equal 100%.



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