Pure water would have a BOD value of | vedclass

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Question

(A) The $BOD$ (Biochemical Oxygen Demand) is a measure of the amount of dissolved oxygen required by aerobic microorganisms to decompose organic matte

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about $1 \ ppm$

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(A) The $BOD$ (Biochemical Oxygen Demand) is a measure of the amount of dissolved oxygen required by aerobic microorganisms to decompose organic matter present in a given volume of water. Pure water has a very low $BOD$ value,typically around $1 \ ppm$. $A$ water supply with a $BOD$ level of $3-5 \ ppm$ is considered moderately clean,while water with a $BOD$ level of $6-9 \ ppm$ is considered polluted.

Pure water would have a $BOD$ value of

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