Silicon in ultrafresh groundwater: a case study of the Imandra Lake catchment, The Kola PeninsulaNatalia V. Guseva, Yuliya G. Kopylova, Daria A Vorobeva, Albina A. Khvashchevskaya and Zinaida A. EvtyuginaE3S Web Conf., 98 (2019) 01018DOI: https://doi.org/10.1051/e3sconf/20199801018