Quality of drinking water in rural areas: problems of legal environmentVolodymyr Yermolenko, Olena Hafurova, Maryna Deineha, Tamara Novak, Alena Temnikova and Erdene NaidansurenE3S Web Conf., 280 (2021) 09022DOI: https://doi.org/10.1051/e3sconf/202128009022