I received doctor of Philosophy-PhD, Environmental Engineering from the university of Tokyo, Japan; Master of science, MS Hazardous waste management, gradate school, Chulalongkorn University, Thailand; bachelor degree of Engineering, BE Environmental engineering from Chiang Mai University, Thailand. Now, I am Postdoctoral researcher in department of Urban engineering at the university of Tokyo. My research field related to fluoride contamination in groundwater, the method for defluorination, examination amount of fluoride intake from direct and indirect water consumption and the way to remove the risk of fluoride in human health.