Geografie 1997, 102, 270-278

Quality of surface waters in the Ohře River catchment area in the years 1963 - 1996

Julius Česák

Katedra fyzické geografie a geoekologie, Přírodovědecká fakulta UK, Albertov 6, 128 43 Praha 2, Czechia

The evaluation concerns selected indices of oxygen regime and of basic physical and chemical indices: BSK5, N-NO3-, N-NH4+, P-PO43-, the total phosphorus and dissolved matters. A particular attention is paid to a comparison of average levels for the whole observed period and for the last five years. The indices of quality are selected to register mainly local sources of pollution which most influence the quality of water in the Ohře river and in its affluents.