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You are here: Home / Data and maps / Maps and graphs / Average concentrations of nutrients in European groundwaters and surface waters (1992-2008)

Average concentrations of nutrients in European groundwaters and surface waters (1992-2008)

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Concentrations are expressed as annual mean concentrations. Only complete series after inter/extrapolation are included (see indicator specification). The number of river stations/lake stations included per country is given in parenthesis.

European data

Metadata

Additional information

  • Only stations with time series consisting of minimum seven years are included. The number of stations included per country is given in parenthesis.
  • Nitrate in rivers (* = total oxidized nitrogen): Albania (6), Austria (145), Belgium (29), Bulgaria (79), Switzerland (6), Czech Republic (70), Germany (147), Denmark* (39), Estonia (49), Spain (356), Finland* (143), France (315), Hungary* (98), Ireland (5), Lithuania (28), Luxembourg (3), Latvia (39), Netherlands (9), Norway (10), Poland (106), Sweden* (113), Slovenia (24), Slovakia (53), United Kingdom (149).
  • Orthophosphate in rivers: Albania (5), Austria (124), Belgium (31), Bulgaria (68), Switzerland (6), Czech Republic (70), Germany (144), Denmark (41), Estonia (53), Spain (155), Finland (129), France (295), Hungary (98), Ireland (6), Lithuania (28), Luxembourg (1), Latvia (39), Norway (10), Sweden (113), Slovenia (24), Slovakia (24), United Kingdom (79).
  • Total phosphorus in lakes: Austria (5), Switzerland (15), Germany (7), Denmark (20), Estonia (8), Finland (183), Hungary (11), Ireland (8), Lithuania (4), Latvia (8), Netherlands (7), Poland (1), Sweden (165), Slovenia (4), United Kingdom (18).

 

  • Some countries measure nitrate plus nitrite (NO3 + NO2) = total Oxidized nitrogen - as nitrite (NO2) is usually a few percent of total Oxidized nitrogen, we have countries where nitrate is measured using a total of Oxidized Nitrogen
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