Question

What do you mean by PPM​

Answer 1

PPM literally means Part Per Million.

Answer 2

Explanation:

PPM : parts per million

This is a way of expressing very dilute concentrations of substances. Just as per cent means out of a hundred, so parts per million or ppm means out of a million. Usually describes the concentration of something in water or soil. One ppm is equivalent to 1 milligram of something per liter of water (mg/l) or 1 milligram of something per kilogram soil (mg/kg).

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