Health-related Information on Metals in Drinking Water

Since December 2017, the Water Supplies Department (WSD) implements an Enhanced Water Quality Monitoring Programme, which collects drinking water samples from consumers' taps of randomly selected premises for testing metals that could be present in internal plumbing systems. Nevertheless, their levels in drinking water and the corresponding health risks are usually very low if the internal plumbing systems are properly installed and maintained. For programme information, please refer to WSD's webpage of “Enhanced Water Quality Monitoring Programme”.

Information about metals in drinking water, their key health effects and health advice are given below.