Answer :

ANSWER:

The water required for each personal or domestic use must be safe, therefore free from micro-organisms, chemical substances and radiological hazards that constitute a threat to a person's health. Measures of drinking-water safety are usually defined by national and/or local standards for drinking-water quality.

Or

Ultimately grounded in the right to an adequate standard of living—including for health, food, and housing—enshrined in the UDHR, the international community has gradually forged a broad consensus affirming that the right to water “is essential for the full enjoyment of life and all human rights.”

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