Under the patronage of the Dean of Al-Esraa University College, Prof. Dr. Abdul Razzaq Jabr Al-Majidi, the Continuing Education Committee in the Department of Dental Industry Technologies held on Monday 4/11/2022 a scientific lecture entitled - Dust stroms Investigating Atmospheric particulate matter and pollution sources-  which was delivered by the Head of the Department Dr. Thaer Latif Mazal, in the presence of the department professors and a number of students.