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(Solved by Expert Tutors)The lead (Pb) concentration detected from a water-supply well is 0.15 mg/l


The lead (Pb) concentration detected from a water-supply well is 0.15 mg/l (assume specific gravity of the well water is 1.0 at 25 deg C). If the drinking water standard is 15 ppb, what is your evaluation of this data?


The Pb concentration is equivalent to 0.015 ppb and therefore meets the drinking water standard.
The Pb concentration is equivalent to 15 ppb and therefore meets the drinking water standard.
The Pb concentration is equivalent to 150 ppb and therefore does not meet the drinking water standard.
The Pb concentration is equivalent to 1,500 ppb and therefore does not meet the drinking water standard.

 


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Apr 19, 2020

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