Phanitda P.Chenrachasith is a lecturer in Department of Natural Resources and Environment, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok, Thailand. Her graduated B.S.(Nursing) Boromarajonani College of Nursing. 1989. M.Sc. Environmental Science, Rutgers University (New Brunswick) USA. 1995. And Ph.D. Environmental Science:Pollution and Prevention Control, Rutgers University (New Brunswick) USA. 2000. Post Doctorate. Environmental Exposure and Risk Assessment, Harvard University, USA. 2001-2004. Her specialty in Pollution Prevention and Control, Sustainable Indicators, Ecological Health Risk Assessment and Environmental Bio-indicators.