More information

Data sources: 

• Data were provided by the Environment Quality Monitoring Division of the State Hydrometeorological Service of the Ministry of Agriculture, Regional Development and Environment, under the ENI SEIS II East project activities.
• Water quality database of Dniester river basin, State Hydrometeorological Service. 

Note: The graph shows the distribution of river monitoring sites in nitrate concentration classes (left) and total phosphorus concentration classes (right) for the two river basins of Moldova (Prut basin and Nistru (Dnister) basin), in the Black Sea basin in Moldova (direct tributaries of the Black Sea) and for the whole country, based on the average of the annual mean concentrations for 2017. The number of monitoring sites per river basin is given in parenthesis.

At present, more than half of the sites on rivers in Moldova have low nitrate concentrations (< 2.0 mg N/l) and one third have moderate concentrations (2.0-3.0 mg N/l). Two sites out of 19 have very high concentrations; both are located in the Nistru basin. All six sites on the Prut basin have low nitrate concentrations. The Danube river in Moldova has low nitrate pollution (< 2.0 mg N/l). The River Cogîlnic that flows into the Black Sea is moderately polluted by nitrate (2.0-3.6 mg N/l). 

The situation is worse for total phosphorus in rivers. Almost 50 % of river sites in Moldova are moderately to highly polluted. The majority of them lie on the Nistru basin. The least polluted by phosphorus are rivers in the Prut basin. The total phosphorus measured in the Danube river in Moldova demonstrates low nitrate pollution (< 0.1 mg P/l). The River Cogîlnic that flows into the Black Sea is moderately polluted by phosphorus (0.1-0.2 mg P/l).