Question

According to ISI the permissible limit of Arsenic in drinking water is​

Answer 1

Answer:

arsenic in drinking water permissible limit os 0.05mg/l as per indian standard (IS3025) and as per CPCB guidelines for effulent standards the concentration of arsenic is 0.2 mg/l max

Explanation:

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Answer 2

Arsenic acceptable as 0.05 mg/l in drinking water as per Indian Norm (IS3025) and 0.2 mg/l limit as per CPCB recommendations for effective quality.

Explanation:

• The U.S. Environmental Protection Agency (U.S. EPA) has set a permissible amount of contaminant arsenic (MCL) of 0.010 mg/L for surface water sources.
• It represents 0.010 parts per million (ppm), 10 micrograms per liter (μg / L), or 10 parts per billion (ppb). The EPA is also establishing the MCL (MCLG) goal for drinking water.
• The average acceptable value for fluoride in drinking water is 1.5 ppm, and the lowest appropriate level is 1.0 ppm, according to WHO 1984 and Indian quality drinking water definition, 1991. Concentrations of fluoride over 1.5 ppm in drinking water induce dental fluorosis and concentrations of skeletal fluorosis even higher.

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