Estimating potential groundwater contribution of nickel, copper, cadmium, lead, and zinc concentrations to surface water catchments in Denmark

This dataset includes estimates of the typical groundwater contribution of nickel, copper, cadmium, lead, and zinc to the ID15 catchments. The methodology is described in detail and illustrated for nickel (see pdf file). The data is provided as a shapefile and csv file. This work was funded by the Danish EPA (Miljøstyrelsen) in relation to "Videreudvikling og klargøring af MetalStat for landsdækkende beregninger." (Sørensen et al., 2024) and "Unifying monitoring and modelling of water concentration levels in surface waters (Version 2)" (Sorensen et al., 2025).