Case study of pollution level of river ganges before and after corona virus lockdown
Answers
Answer:
There is be less pollution right now and there will be more pollution after Corona Virus.
Explanation:
There is less pollution in these days because because of Lockdown, Factories are closed and there is no pollution. After Lockdown and the Corona Virus the factories will start again and again pollution will be started.
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The dissolved oxygen (DO) concentration, a measure of the amount of free oxygen available in river systems, “rose marginally” from March 22-April 15. A high DO value is considered a good indicator of river health.
However, two other measures, BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) both indicators of the amount of oxygen necessary to break down organic and inorganic pollution showed “insignificant reductions”, the CPCB report notes. The lower these numbers are the better they indicate river health.
Explanation: