Ecological Problems in the Mining Areas of Gobi Sandag Enkh-Amgalan, Bazarvaani Sarantsetseg, Natalia Emelianova, Gerelma Dugarova, Olga Gagarinova, Irina Belozertseva and Konstantin Tszian E3S Web Conf., 630 (2025) 02016 Published online: 22 May 2025 DOI: 10.1051/e3sconf/202563002016