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In Belarus, all the river sites were in the low nutrient concentration classes. The highest average concentrations were found in the Dnieper and Neman river basins. Also for phosphate, the vast majority of river sites were in the three lowest classes. The sites with concentrations above 0.1 mg P/l were found in the Dnieper, Pripyat, Neman and Western Bug river basins. The highest average phosphate concentration was in the Western Bug. Overall, the current phosphate concentration exceeded the national maximum permissible concentration (0.066 mg P/l) at 38 % of the sites. Current total phosphorus concentrations above 0.1 mg P/l were only observed for seven lakes. High phosphorus concentrations can in some cases be related to direct discharges of waste water into lakes.