The phenolic compounds in public water supply should not be more than
A. 0.1 ppm
B. 0.01 ppm
C. 0.001 ppm
D. 0.0001 ppm
Answer:C
The phenolic compounds in public water supply should not be more than
A. 0.1 ppm B. 0.01 ppm C. 0.001 ppm D. 0.0001 ppm