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What should be the amount of BOD in the drinking water?

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in Biology – Class 12 by (271k points)
What should be the amount of BOD in the drinking water?

(a) More than 1 ppm

(b) Less than 1 ppm

(c) 5 ppm

(d) 10 ppm

I had been asked this question at a job interview.

My question is based upon Environmental Issues topic in portion Environmental Issues of Biology – Class 12

1 Answer

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Best answer
Correct answer is (b) Less than 1 ppm

Explanation: The amount of biological oxygen demand in pure drinking water should be less than 1 ppm. Less amount of BOD means more amount of dissolved oxygen (DO) is present in water. This DO is essential for the proper growth of organisms.

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