Drinkable water

(हिंदी में पढ़ें) 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 […]