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What is the unit of measurement used for lead concentration in drinking water?

Options

  1. Appm (parts per million)
  2. Bppb (parts per billion)
  3. Cg/L (grams per liter)
  4. Dmg/L (milligrams per liter)

Correct answer

B. ppb (parts per billion)

Step-by-step solution

Lead concentration in drinking water is typically measured in parts per billion (ppb).

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