1. a Faculty of Environment, Hanoi University of Mining and Geology (HUMG), No.18, Vien Street, Duc Thang Ward, Bac Tu Liem District, Hanoi, Vietnam
2. b Faculty of Environment, Hanoi University of Natural Resources and Environment, No. 41 A Phu Dien Road, North-Tu Liem District, Hanoi, Vietnam
3. c Institute of Environmental Science, Engineering, and Management; Industrial University of Ho Chi MInh, Vietnam