Overview

water hardness


Show Summary Details

Quick Reference

“Hard” water contains a high concentration of dissolved salts, notably calcium or magnesium salts, which inhibit the action of soap and therefore its cleansing quality. The geological composition of the catchment area determines the hardness or softness of the water supply from a particular source. Epidemiological evidence suggests that there may be an association between hardness or softness of drinking water supplies and the prevalence of certain conditions, e.g., cardiovascular disease, but the evidence is inconsistent and disputed.

Subjects: Public Health and Epidemiology.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.