Q. Which among the following option would normally have the highest Biological Oxygen Demand (BOD)?
✅ Correct Answer: (C)
Untreated Municipal waste water
Explanation: BOD is amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period, for running rivers, it would be minimum and for Untreated Municipal waste water it would be maximum.
Explanation by: Monu Rathod
BOD is amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at certain temperature over a specific time period, for running rivers, it would be minimum and for Untreated Municipal waste water it would be maximum.