- Rivers - nitrate

Note: The data series are calculated as the average of annual mean concentrations for river stations in Europe. Only complete series after inter/extrapolation are included (see indicator specification).
The number of river stations included per country is given in parentheses:
1992-2018: Europe (966), Albania (2)***, Austria (39), Belgium (26), Czechia (19), Denmark* (37), Estonia (38), Finland** (65), France** (180), Germany (120), Ireland** (4), Latvia (12), Lithuania (22), Norway** (82), Poland (4),  Slovakia (8), Slovenia (8), Spain** (151), Sweden* (109), Switzerland (6), United Kingdom** (36).
2000-2018: Europe (1390), Albania (7)***, Austria (41), Belgium (34), Cyprus (13), Czechia (19), Denmark* (38), Estonia (40), Finland** (76), France** (238), Germany (124), Iceland (1), Ireland** (50), Latvia (16), Lithuania (24), North Macedonia (19), Norway** (89), Poland (5), Romania (99), Serbia (34), Slovakia (8), Slovenia (10), Spain** (247), Sweden* (112), Switzerland (16), United Kingdom** (37).
(*all data total oxidised nitrogen, **some data total oxidised nitrogen)