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Health risk related to the presence of metals in drinking water from different types of sources

The aim of the paper is to assess health risk related to the exposure of people to contact with water contaminated with chosen metals, via ingestion and dermal routes. The results of analyses performed in 2012–2017 using water samples collected from a surface water intake point on the Dunajec, from infiltration wells and samples of treated water supplied to the water distribution system were used as the basis for calculations. Exposure assessment was performed for children and adults. It was demonstrated that treated water supplied directly into the water distribution system had superior parameters. In the case of adults, the calculated HI values were two or three times higher than for children over the entire analysed period in all three risk assessment scenarios. Health risk resulting from the presence of metals in water is mostly related to the ingestion exposure route. Dermal contact does not produce a considerable risk.