what is biochemical oxygen demand ?

Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e. demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

Pollution in water

algal bloom

plant (algal bloom) growth and decay may be unnaturally accelerated when nutrients and sunlight are overly abundant due to human influence

Oxygen consumed in the decomposition process of dead algae robs other aquatic organisms of the oxygen they need to

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What is biochemical oxygen demand ?

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