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Question
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from
Biochemical Oxygen Demand (BOD) may not be good index for pollution for water bodies receiving effluents from
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Solution
The correct option is D petroleum industry
Biochemical Oxygen Demand (BOD) refers to the amount of the oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria.
The more organic matter there is (e.g., in sewage, sugar industry, dairy industry), the greater the BOD.
BOD is not a good index for checking the pollution levels of water bodies receiving effluents from the petroleum industry. This is because such effluents contain waste which is non-biodegradable.
Hence, the correct answer is option D.
Biochemical Oxygen Demand (BOD) refers to the amount of the oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria.
The more organic matter there is (e.g., in sewage, sugar industry, dairy industry), the greater the BOD.
BOD is not a good index for checking the pollution levels of water bodies receiving effluents from the petroleum industry. This is because such effluents contain waste which is non-biodegradable.
Hence, the correct answer is option D.
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