Paul Onkundi Nyangaresi

Postdoctoral Fellow

Environmental Systems Engineering



Postdoctoral fellow at the Civil Engineering department at the University of British Columbia-Canada; Doctor of Engineering in Electronic Science and technology obtained from Xiamen University-China; MSc in Electronics and Instrumentation from Kenyatta University-Kenya; and BED (Physics and Mathematics) from Kenyatta University-Kenya.

Research Interests

UV light in drinking water, air and surface disinfection Validation of UV water disinfection systems UV light Emitting Diode measurement and validation Microbial growth and analysis

Awards & Recognitions

  • China Government Scholarship Council (CSC), No.2017GXZ023553, PhD scholarship (2017-2021).
  • Certificate of honor as International Student Ambassador for Xiamen University promotional events, 2018, 2019.
  • Xiamen University scholarships for exceptional international students, 2019, 2020.


  • P. O. Nyangaresi, B. Zhang, L. Shen (2020). Effects of UV-LED Irradiation on E. coli in Water Disinfection, E. Coli Infections – Importance of Early Diagnosis and Efficient Treatment, Luis Rodrigo, IntechOpen.
  • L. Shen, T. M. Griffith, P. O. Nyangaresi, Y. Qin, X. Pang, G. Chen, M. Li, Y. Lu, B. Zhang (2020). Efficacy of UVC-LED in water disinfection on Bacillus species with consideration of antibiotic resistance issue, Journal of Hazardous Materials. 386, 121968.
  • P. O. Nyangaresi, Y. Qin, G. Chen, B. Zhang, Y. Lu, L. Shen (2019). Comparison of the performance of pulsed and continuous UVC-LED irradiation in the inactivation of bacteria, Water Research. 157, 218-227.
  • P. O. Nyangaresi, Y. Qin, G. Chen, B. Zhang, Y. Lu, L. Shen (2019). Comparison of UV-LED photolytic and UV-LED/TiO2 photocatalytic disinfection for Escherichia coli in water, Catalysis Today. 335, 200-207.
  • P. O. Nyangaresi, Y. Qin, G. Chen, B. Zhang, Y. Lu, L. Shen (2018). Effects of single and combined UV-LEDs on inactivation and subsequent reactivation of E. coli in water disinfection, Water Research. 147, 331-341.
  • Z. Zheng, Y. Li, P. O. Nyangaresi, H. Long, S. Matta, M. Leroux, J. Brault, L. Ying, Z. Zheng, B. Zhang. (2018). Loss analysis in nitride deep ultraviolet planar cavity. Journal of Nanophotonics. 12(4), 043504.
  • P.O. Nyangaresi, Munji K. M., Bem D. B., Muthoka B. (2018). Effect of Deposition Parameters on Optical and Electrical Properties of SnO2: Al Thin Films Prepared by Spray Pyrolysis Technique for Optoelectronic Devices. International Journal of Thin Films Science and Technology. 7(1), 25-33.