Evaluation of radon gas concentrations in residential air within the Al-Qadisiyah district, Baghdad, IraqDoaa Majid Hameed, Naba Talib Nomas, Hadeel Abdullah Jameel, Laith S. Alhiti and Basima Saleem DawoodE3S Web Conf., 670 (2025) 04015DOI: https://doi.org/10.1051/e3sconf/202567004015