[1] Tezpur Univ, Dept Environm Sci, Tezpur 784028, Assam, India
[2] Jawaharlal Nehru Univ, New Delhi 110067, India
[3] Univ Ruhuna, Fac Engn, Dept Civil & Environm Engn, Galle, Sri Lanka
[4] Hanoi Architectural Univ, Hanoi, Vietnam
[5] Natl Inst Environm Studies, Ctr Environm Risk Res, Tsukuba, Ibaraki 3058506, Japan