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Concentration of biochemical oxygen demand in rivers in EU and accession countries

Concentration of biochemical oxygen demand in rivers in EU and accession countries

Chart (static)Published 12 Nov 2009Modified 11 Sept 2024

Number of stations in brackets

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EU countries: Denmark, France, UK Accession countries: Bulgaria, Hungary, Slovak Republic, SIovenia. Background concentrations of biochemical oxygen demand are difficult to quantify and are likely to be at or below the detection limit of the analytical method of measurement, that is, between 1 and 2 mg O2/l.

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