Variable
precipitation_amount_off
magnesium
ammonium_mg_N_per_l
ammonium_mg_per_l
cadmium
calcium
chloride
conductivity
iron
lead
manganese
nickel
nitrate_mg_N_per_l
nitrate_mg_per_l
pH
potassium
sodium
sulphate_corrected_mg_S_per_l
sulphate_corrected_mg_per_l
sulphate_total_mg_S_per_l
sulphate_total_mg_per_l
zinc