Yes the data are differ ...

Yes the data are differ country to country as depends upon environ conditions changes accordingly but .But as per WHO the data should be meet accordingly. Globally water management systems are facing enormous challenges of accelerating water insecurity, flooding, and contamination of water resources. According to the UN 80% of sewage is currently discharged without treatment. In India there are state pollution control bpoard and central control board.

Please find attached herewith different data sheets.