2009-12 to present | Professor, College of Environmental Science and Engineering, Employment
1997-07 to 2009-11 | Lecture, Associate professor, College of Environmental Science and Engineering, Employment
1998-03 to 2002-01 | Ph.D, College of Environmental Science and Engineering, Education
1996-09 to 1998-03 | Master, College of Environmental Science and Engineering, Education
1991-09 to 1996-07 | Undergraduate, College of Environmental Science and Engineering, Education