A. DO
B. BOD
C. COD
D. all of the above
¨ All of the above factors are used to measure the quality of water:
¨ A. DO (Dissolved Oxygen) is a measure of the amount of oxygen present in the water, which is essential for the survival of aquatic organisms.
¨ B. BOD (Biochemical Oxygen Demand) is a measure of the amount of oxygen required by microorganisms to decompose organic matter present in the water. Higher BOD indicates higher levels of organic pollution in the water.
¨ C. COD (Chemical Oxygen Demand) is a measure of the amount of oxygen required to oxidize all the organic and inorganic substances present in the water. It provides a measure of the total amount of organic and inorganic pollutants in the water.
¨ These parameters are used to assess the level of pollution in water and to determine its suitability for various purposes, such as drinking, agriculture, and industrial use.
Submitted by :- Jamil Ahmed