Information subsystem of the SO4/Cl ratio as database for studying its influence on human health.

General lack of surface waters in the Dalmatian region on one hand (Croatia) and a large profusion and complexity of underground waters circulation, on the other hand, are typical phenomena of Dalmatian Karst region. Underground waters in Dalmatia belong to rift water similar to surface waters considering its hydrochemical and hygienic characteristics. Health care institutions and water authorities have become particularly interested in observing and monitoring water as well as preserving its quality.