Page 46 - Statistics presented by Dr. Sara Ismail Aborass
P. 46

9/8/2023

               [C] NITRATE IN WATER
               SOURCES & SIGNIFICANCE :

                Nitrate in drinking water
                The maximum permissible limit is 10 mg/l.
                It is the final state of oxidation in the nitrogen cycle
                 it indicates past organic pollution.

89

                 DETERMINATION :

                Phenoldisulphonic acid method :

90

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