Example 4 from industrial waste water of one found in wastewater 100 g, lead contamination 0.001 grams.
, accused of lead contamination in wastewater is a PPM
ppm = mass of solute (g) X 106
mass of solution (g)
= mass lead heavy 0.001 (g) X 106
water 100 (g)
= mass of lead 0.001 (g) X 106
mass of solution 100 (g)
= 1X10-5X106
so waste lead additives 10 ppm.
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