Compared to 10-15 years ago many countries and RBD now have low concentration of BOD. River basins with the lowest BOD concentration (class 1: < 1.4 mg O2/l) are for example found in Ireland, Scotland, and Wales, in Denmark and southern Finland and in Austria and southern France. RBDs with the highest BOD concentrations (class 4&5: >= 3 mg O2/l) are found in Belgium, Bulgaria, and Romania.
You cannot post comments to this consultation because you are not authenticated. Please log in.
Previous comments
The data sources of these figure and values should be indicated since these data were not reported in the river basin management plans (possible SoE)