Present concentration of BOD5, BOD7 (mg O2/l) in rivers of European countries

Figure Created 12 Nov 2009 Published 12 Nov 2009 Last modified 29 Nov 2012, 11:38 AM
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Number of river monitoring stations included in analysis noted in brackets


European data


Additional information

BOD5 data used for all countries except Estonia, Finland and Lithuania where BOD7 data used. Data are from representative river stations. Stations that have no designation of type are assumed to be representative and are included in the analysis. Revised classes are used. The number of stations with annual means within each concentration band is calculated for the latest year for which data are available. The latest year is 2005 for all countries except Denmark (2004), Greece (2004), Romania (2001) and Cyprus (1999).

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