TY - JOUR A1 - Hansen, B. A1 - Dalgaard, T. A1 - Thorling, L. A1 - Sørensen, B. A1 - Erlandsen, M. T1 - Regional analysis of groundwater nitrate concentrations and trends in Denmark in regard to agricultural influence JO - Biogeosciences J1 - BG VL - 9 IS - 8 SP - 3277 EP - 3286 Y1 - 2012/08/23 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/9/3277/2012/ L1 - https://bg.copernicus.org/articles/9/3277/2012/bg-9-3277-2012.pdf DO - 10.5194/bg-9-3277-2012 ER -