Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

  • Option 1)

    domestic sewage

  • Option 2)

    dairy industry

  • Option 3)

    petroleum industry

  • Option 4)

    sugar industry

 

Answers (1)
V Vakul

As learnt

Causes of water pollution -

Oil pollution

- wherein

Oil is a source of pollution in sea-water. Oil pollution is due to ship accidents, loading and discharging of oil at the harbour, oil refineries and off-shore oil production. Degree of impurity of after due to organic matter is measured in terms of BOD (Biochemical Oxygen Demand). It is the demand for O2 to decompose organic wastes in liter of water.

 

 


Option 1)

domestic sewage

This option is incorrect

Option 2)

dairy industry

This option is incorrect

Option 3)

petroleum industry

This option is correct

Option 4)

sugar industry

This option is incorrect

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