Chlorophenols impart unpleasant taste and odor to drinking water at concentratio

Question

Chlorophenols impart unpleasant taste and odor to drinking water at concentration as low as 5 mg-(m3)-1. They are formed when the chlorine reacts with water that contains phenols. What is the unpleasant taste and odor threshold in units of: a) mg-L-1 b) Chlorophenols impart unpleasant taste and odor to drinking water at concentration as low as 5 mg-(m3)-1. They are formed when the chlorine reacts with water that contains phenols. What is the unpleasant taste and odor threshold in units of: a) mg-L-1 b)

Explanation / Answer

(a) 1 m3 = 10^3 L => 1 (m3)-1 = 10^(-3) L-1

5 mg-(m3)-1 = 5 mg-(m3)-1 x 10^(-3) L-1/(m3)-1

= 5 x 10^(-3) mg-L-1


(b) 1 mg = 10^3 ug

5 mg-(m3)-1 = 5 mg-(m3)-1 x 10^(-3) L-1/(m3)-1 x 10^3 ug/mg

= 5 ug-L-1


(c) 1 ppm = 1 mg-L-1

5 mg-(m3)-1 = 5 mg-(m3)-1 x 10^(-3) L-1/(m3)-1 x 1 ppm/(mg-L-1)

= 5 x 10^(-3) ppm

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