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What is the recommended maximum nitrate level in drinking water to prevent 'blue baby' syndrome?

Options

  1. A10 ppm
  2. B25 ppm
  3. C50 ppm
  4. D75 ppm

Correct answer

C. 50 ppm

Step-by-step solution

To prevent 'blue baby' syndrome, the recommended maximum nitrate level in drinking water is 50 ppm. Beyond this level, there is an increased risk of health problems associated with nitrate contamination.

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