1Department of Civil Engineering, Faculty of Engineering, Khon Kaen University,
2Research Center for Environmental and Hazardous Substance Management, Khon Kaen University,
123 Moo 16 Mittapap Road, Nai-Muang, Muang District, Khon Kaen 40002, Thailand
Pol. J. Environ. Stud. 2014;23(3):853–865