Assessment of the current status of the exhaust gas treatment systems of some factories in Hoa Khanh Industrial Zone, Da Nang City, VietnamPhuoc Quy An Nguyen, Dinh Huan Nguyen and Diep Ngoc Khoi VoE3S Web Conf., 624 (2025) 03005DOI: https://doi.org/10.1051/e3sconf/202562403005