Lead background values in the groundwater of Lower Saxony 1: 500.000

Open data API in a single place

Provided by Bundesamt für Kartographie und Geodäsie

Get early access to Lead background values in the groundwater of Lower Saxony 1: 500.000 API!

Let us know and we will figure it out for you.

Dataset information

Catalog
Country of origin
Updated
Created
2022.01.31
Available languages
German
Keywords
Geologie, NIBIS-Metadaten
Quality scoring

Dataset description

Background values for dissolved lead in groundwater have been determined for the hydrogeological subregions 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 lead 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 color-differentiated the lead 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! Information on the data: The groundwater analyses used are derived from the database of the Lower Saxony Soil Information System (NIBIS). Background values are defined as the 90th percentile of the normal population of the geogenic concentration of the analysed parameter. The most up-to-date analysis of a groundwater measuring site was used to determine the background values, but no measurements dating before 2000. In the case of too low sample numbers (n < 10), lithologically similar subspaces were combined to form a common background value. The calculation of the background values followed the method for statistical evaluation of the data using the probability network of the State Geological Services (Wagner et al., 2011). Sources: ELBRACHT, J., MEYER, R. &AMP; 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. &AMP; WIRSING, G. (2011): Hydrogeochemical Background values of the groundwaters of Germany as a web map service. — Groundwater 16(3): 155-162;Springer, Berlin/Heidelberg.The background values of dissolved lead 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 color-differentiated the lead 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! Information on the data: The groundwater analyses used are derived from the database of the Lower Saxony Soil Information System (NIBIS). Background values are defined as the 90th percentile of the normal population of the geogenic concentration of the analysed parameter. The most up-to-date analysis of a groundwater measuring site was used to determine the background values, but no measurements dating before 2000.In the case of too low sample numbers (n < 10), lithologically similar subspaces were combined to form a common background value. The calculation of the background values followed the method for statistical evaluation of the data using the probability network of the State Geological Services (Wagner et al., 2011). Sources: ELBRACHT, J., MEYER, R. &AMP; 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. &AMP; WIRSING, G. (2011): Hydrogeochemical Background values of the groundwaters of Germany as a web map service. — Groundwater 16(3): 155-162; Springer, Berlin/Heidelberg.
Build on reliable and scalable technology
Revolgy LogoAmazon Web Services LogoGoogle Cloud Logo
FAQ

Frequently Asked Questions

Some basic informations about API Store ®.

Operation and development of APIs are currently fully funded by company Apitalks and its usage is for free.
Yes, you can.
All important information such as time of last update, license and other information are in response of each API call.
In case of major update that would not be compatible with previous version of API, we keep for 30 days both versions so you will have enough time to transfer to new version. We will inform you about the changes in advance by e-mail.

Didn't find the API you need?

Let us know and we will figure it out for you.

API Store provides access to European Open Data via scalable and reliable REST API interface.
Copyright © 2024. Made with ♥ by Apitalks