Determination of heavy metal contamination and pollution indices of atmospheric dust in Dushanbe and Ayvaj, TajikistanShohina Khalifaeva, Sabur Abdullaev, Vladimir Maslov, Bakhtiyor Safarov and Firdavs ShukurovE3S Web Conf., 575 (2024) 01004DOI: https://doi.org/10.1051/e3sconf/202457501004