How does ppm compare to ppb?

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asked Mar 17, 2018 84.3k views

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MKroeders · Answer 1 · 2018-03-24T02:03:12+0000

Another way to say it is a liter of water weighs 1,000 grams or 1 million mil- ligrams. Therefore, 1 mg in 1 liter is l mg in 1 million mil- ligrams or 1 part per million. An even smaller concentra- tion measurement is parts per billion (ppb).

How does ppm compare to ppb?

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