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4 January, 20:14

For each of the following units and concentration values, mention if they are parts per million (ppm), parts per billion (ppb) or parts per trillion (ppt) to

a. g / Ton

b. mg / L

c. μg / L

d. ng / L (ng = nanogram) and e

e. mg / ton

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Answers (1)
  1. 4 January, 20:19
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    a) ppm

    b) ppm

    c) ppb

    d) ppt

    e) ppb

    Explanation:

    a) You know that 1000 g are 1 kg, and 1000 kg are 1 ton, so (1000) * (1000) g are 1 ton, so 1,000,000 grams are one ton.

    b) 1000 mg are 1 g, and 1000 g are 1 liter, so 1,000,000 grams are one liter.

    c) You know that 1000 ug are 1 mg, so with the b), we just need to multiply the answer by 1000, so 1,000,000,000 ug are 1 liter.

    d) The same as c, 1000 ng are 1 mg. So we are talkinf of ppt.

    e) 1000 mg are 1 g. And 1000 g are 1 kg, then 1000 kg are one ton. So 1,000,000,000 mg are one ton.
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