Question

"BOD is commonly calculated as an index of water pollution."
(a) Do you agree with this statement ? Why ?
(b) Expand BOD.

Answer 1

a) BOD is the amount of dissolved oxygen (DO) used by aerobic microorganisms when decomposing organic matter in water. in a given period of time. A higher BOD indicates the presence of more organic matter in the water body hence greater oxygen demand. Thus BOD is commonly calculated as an index of water pollution.

b) BOD stands for Biological Oxygen Demand.