calcium and magnesium could ...
Published by Ty Yeh, Professor
calcium and magnesium could be from the natural sources such as the various geological coditions. Bascically, they are not toxic substances. However, they may deteriorate the tast of the drinking water.
1 Comment
True, the question is whether total hardness gives a good indication of Calcium and Magnesium.
Published by UDAY PRASAD, Monitoring and Evaluation Professional