According to the Indian Council of Medical Research (ICMR), safe water should be free from disease-causing agents such as parasites, viruses, and bacteria. It should also not contain harmful substances like heavy metals, nitrates, silica, arsenic, industrial wastes, and fluoride beyond the acceptable safe limit of 1–1.5 mg/liter.
How to make water safe?
For centuries, people have relied on simple yet effective techniques to purify water:
- Boiling: Heating water for 10–15 minutes helps remove hardness and effectively kills harmful microorganisms.
- Chlorination: Adding chlorine at a concentration of 25 mg/liter disinfects the water and prevents infections.
With advancements in technology, modern gadgets such as water purifiers and filtration systems now provide safe and convenient alternatives for ensuring clean drinking water.
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