Polychemical pollution of surface waters and permafrost-affected soils in Central and North Yakutia and in North-West SiberiaAleksei Lupachev, Petr Danilov, Marta Ksenofontova, Evgeny Lodygin, Anna Usacheva, Pavel Kalinin, Yana Tikhonravova and Vladislav ButakovE3S Web Conf., 163 (2020) 04005DOI: https://doi.org/10.1051/e3sconf/202016304005