Boron background values in the groundwater of Lower Saxony 1: 500,000 (WMS Service) Boron background values in the groundwater of Lower Saxony 1: 500,000 (WMS Service)

Background values for dissolved boron in groundwater have been determined for the hydrogeological subdivisions of Lower Saxony (Elbracht et al., 2016) in order to fulfil the tasks of the EC Water Framework Directive (EC-WRRL) and the Groundwater Ordinance (GrwV).The background values of dissolved boron include the levels that occur under natural conditions due to the contact of the groundwater with the surrounding rock matrix of the aquifer. The map shows the boron background values of the hydrogeological subregions of Lower Saxony. The classification is based on the valid de minimis thresholds (GFS) of the National Working Group Water (LAWA), the limit values of the Drinking Water Ordinance (TrinkwV) and the World Health Organisation (WHO) benchmarks.By selecting a subspace you get further information (e.g. number of samples, combined sub-spaces, etc.). Background values are not current values for groundwater quality and cannot be used as such! Sources: ELBRACHT, J., MEYER, R. & REUTTER, E. (2016): Hydrogeological rooms and sub-rooms in Lower Saxony. — Georeports 3, LBEG, Hannover. DOI: 10.48476/geober_3_2016 WAGNER, B., WALTER, T., HIMMELSBACH, T., CLOS, P., BEER, A., BUDZIAK, D., DREHER, T., FRITSCHE, H.-G., HÜBSCHMANN, M., MARCZINEK, S., PETERS, A., POESER, H., SCHUSTER, H., STEINEL, A., WAGNER, F. & WIRSING, G. (2011): Hydrogeochemical Background values of the groundwaters of Germany as a web map service. — Groundwater 16(3): 155-162; Springer, Berlin/Heidelberg.Background values for dissolved boron in groundwater have been determined for the hydrogeological subdivisions of Lower Saxony (Elbracht et al., 2016) in order to fulfil the tasks of the EC Water Framework Directive (EC-WRRL) and the Groundwater Ordinance (GrwV). The background values of dissolved boron include the levels that occur under natural conditions due to the contact of the groundwater with the surrounding rock matrix of the aquifer. The map shows the boron background values of the hydrogeological subregions of Lower Saxony. The classification is based on the valid de minimis thresholds (GFS) of the National Working Group Water (LAWA), the limit values of the Drinking Water Ordinance (TrinkwV) and the World Health Organisation (WHO) benchmarks.By selecting a subspace you get further information (e.g. number of samples, combined sub-spaces, etc.). Background values are not current values for groundwater quality and cannot be used as such! Sources: ELBRACHT, J., MEYER, R. & REUTTER, E. (2016): Hydrogeological rooms and sub-rooms in Lower Saxony. — Georeports 3, LBEG, Hannover. DOI: 10.48476/geober_3_2016 WAGNER, B., WALTER, T., HIMMELSBACH, T., CLOS, P., BEER, A., BUDZIAK, D., DREHER, T., FRITSCHE, H.-G., HÜBSCHMANN, M., MARCZINEK, S., PETERS, A., POESER, H., SCHUSTER, H., STEINEL, A., WAGNER, F. & WIRSING, G. (2011): Hydrogeochemical Background values of the groundwaters of Germany as a web map service. — Groundwater 16(3): 155-162; Springer, Berlin/Heidelberg.