What is the concentration lf fluorides in water in ppm?
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⭐⭐⬅️ Answer ➡️➡️➡️➡️Fluoride is added to public water supplies at an average concentration of about 1 part per million (1 ppm) or1 milligram per liter, or slightly below. Naturally occurring fluoride concentrations in surface waters depend on location but are generally low and usually do not exceed 0.3 ppm
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⭐⭐⬅️ Answer ➡️➡️➡️➡️Fluoride is added to public water supplies at an average concentration of about 1 part per million (1 ppm) or1 milligram per liter, or slightly below. Naturally occurring fluoride concentrations in surface waters depend on location but are generally low and usually do not exceed 0.3 ppm
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