Recently National Green Tribunal had banned RO water filter use in Delhi In RO water filters which o...........

Environment and Ecology Water Pollution

Recently National Green Tribunal, had banned RO water filter use in Delhi. In RO water filters which of the following can be reduced, to meet potable water standards.

Trace chemicals
Viruses
Bacteria
Salts

Select the correct answer code:

1,2&3 only

2,3&4 only

1,3&4 only

All of the above

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Explanation:

In RO, the total dissolved solids (TDS) in water — which covers trace chemicals, certain viruses, bacteria and salts — can be reduced, to meet potable water standards. Some research has shown that the process can cut the levels of calcium and magnesium, which are vital nutrients.