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Quality Unknown: The Invisible Water Crisis – Report
September 5 , 2019
1698 days
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- The world bank has released a new report titled Quality Unknown: The Invisible Water Crisis’’.
- It highlights how deteriorating water quality is an “invisible crisis” that has wiped out one third of potential economic growth in highly polluted areas.
- It has warned that a combination of bacteria, sewage, chemicals and plastics can remove oxygen from water and transform it into a “poison for people and ecosystems alike”.
Nitrogen
- The report notes that a key contributor to poor water quality is nitrogen.
- Nitrogen which is applied as fertiliser in agriculture, eventually enters rivers, lakes and oceans where it transforms into harmful nitrates and enters into food chain.
Biological Oxygen Demand (BOD)
- It states that when BOD crosses a threshold of 8 milligrams per litre, GDP growth in those regions drops by 0.83 percentage points.
- BOD is a measure of how much organic pollution is in water.
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