Determining the geochemical hazard of drinking water: Case studies from the Novogorsk and the Aprelevka districts, Moscow Region, RussiaK.Y. Mikhaylichenko, A.Y. Dorontsova, O.A. Maksimova, I.A. Adarchenko and A.I. KurbatovaE3S Web Conf., 98 (2019) 09019DOI: https://doi.org/10.1051/e3sconf/20199809019