1 VUV modeling with program Research topics Degrading microplastics(MP) by using various oxidation processes(UV photolysis, UV/H2O2, ozonation) and identifying changes in physicochemical properties of MP by oxidationComparing oxidative behaviors of microplastics(MP) and particulate organic matter(POM) in various oxidation processes (UV/H2O2, ozone, persulfate-based oxidation process) Establishing pretreatment protocol of MP sample for quantification by fluorescent staining