Origin of hexavalent chromium in groundwater: the example of Sarigkiol Basin, Northern Greece

N. Kazakis, N. Kantiranis^*, K. Kalaitzidou, M. Kaprara, M. Mitrakas, Robert Frei, G. Vargemezis, P. Tsourlos, A. Zouboulis, A. Filippidis

^*Corresponding author af dette arbejde