Which of the following are some important pollutants released by steel industry in India?
- Oxides of sulphur
- Oxides of nitrogen
- Carbon monoxide
- Carbon dioxide
Select the correct answer using the code given below
[UPSC Civil Services Exam – 2014 Prelims]
(a) 1, 3 and 4 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4
- The main pollutants are particulate matter, oxides of sulphur and nitrogen, and carbon monoxide along with high emissions of carbon dioxide.
- Coke (mostly carbon), reacts with the blast air to produce carbon monoxide, which, in turn, reacts with the iron oxide to produce carbon dioxide and metallic iron.