If BOD of river is high, it means that the river is: Options: A . &nbspNot polluted B . &nbspVery much polluted with inorganic chemicals C . &nbspVery much polluted with organic chemicals which are decomposed by micro-organisms D . &nbspPolluted with pesticides

If BOD of river is high, it means that the river is:

Discussion Forum : Environmental Chemistry

Question - If BOD of river is high, it means that the river is:

Options:

A . Not polluted

B . Very much polluted with inorganic chemicals

C . Very much polluted with organic chemicals which are decomposed by micro-organisms

D . Polluted with pesticides

Answer: Option C
:
C
BOD is the amount of oxygen required by bacteria to break down the organic matter present in certain volume of water. High BOD means high demand for oxygen, which means high levels of organic pollutants.

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Discussion Forum : Environmental Chemistry

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