Social and ecological problems of a small town with a developed mining industry Reseda Khasanova, Yalil Suyundukov, Irina Semenova, Munira Suyundukova and Gulnaz Ilbulova E3S Web Conf., 208 (2020) 04023 Published online: 24 November 2020 DOI: 10.1051/e3sconf/202020804023