Main pollutants released from petroleum refineries is__________________?
Correct answer: A. CO, SO2 & H2S
- A. CO, SO2 & H2S
- B. CO2, NO & SO3
- C. CO2, H2S & NO2
- D. SO3, NO2 & CO2
Explanation
Petroleum-refinery emissions commonly include carbon monoxide from incomplete combustion, sulphur dioxide from burning sulphur compounds, and hydrogen sulphide from sour streams. This combination matches option A.
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