RETRACTED: Impurity distribution in foggy and low cloud cover conditions Nurgali Zaurbekov, Allayarbek Aidosov, Gulzat Zaurbekova and Nurbike Zaurbekova E3S Web Conf., 420 (2023) 09020 Published online: 04 September 2023 DOI: 10.1051/e3sconf/202342009020