• hdchem@ou.ac.lk
  • +94 112 881 371
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Department of
CHEMISTRY

Dr. Kumudika Gangadari Jayalath

BSc; PhD (Kelaniya, Sri Lanka)

Senior Lecturer (G II)

Department of Chemistry
  • ARC, Anuradhapura
  • jijay@ou.ac.lk, jkumudika@gmail.com

I earned my B.Sc. special (Chemistry) degree in 2008 with the second class upper division from the University of Kelaniya and served as a Demonstrator (Aug 2008-Nov 2011) and as a Department Research Assistant (Nov 2011-May 2012). Thereafter I started the PhD at the same university and completed my Ph.D. (with Dr. M P Deeyamulla and Dr. R C L De Silva on pollution monitoring and remediation) in 2016. While I was writing my Ph.D. thesis, I joined to the Open University of Sri Lanka, Colombo Regional Centre as a Demonstrator in 2016 and transferred to the Kandy Regional Centre as a Temporary Lecturer in 2018.  In 2020, I was appointed as Senior Lecturer in Chemistry to the Kandy Regional Centre and was appointed as a faculty coordinator, Anuradhapura Regional Centre (February 2022 to date).

Analytical Chemistry
Environmental Chemistry

Environmental monitoring and pollution control
  • Senior Lecturer, Department of Chemistry, Faculty of Natural Sciences, The Open University of Sri Lanka (2020- to date)
  • Temporary Lecturer, Department of Chemistry, Faculty of Natural Sciences, The Open University of Sri Lanka (February 2018 – August 2020)

Ongoing Research:

  • Recycling of phosphorus from waste water
  • Formation of biodegradable polymer
  1. jayalath, K.G.; Deeyamulla M.P.; de Silva R. C.L; A comparison of heavy metal deposition in selected in two metropolitan areas in Western province of Sri Lanka using the moss monitoring method. Research Journal of Chemistry and Environment,2021, 25(2): 1-6
  2. Jayalath, K.G.; de Silva R. C.L; Deeyamulla M.P., Phytoextraction of Chromium from Polluted Terrestrial Environments by Talinum triangulare(Ceylon Spinach) and the Effect of External Chelators on the Chromium Extraction Potential. Research Journal of Chemistry and Environment, 2020, 24(12): 19-24
  3. Jayalath, K.G.; Deeyamulla M.P; de Silva R.C.L., Atmospheric deposition of polycyclic aromatic hydrocarbons (PAHs) around two metropolitan areas in Sri Lanka using moss as a biomonitor. Pollution Research, 2020, 39 (3): 112-117
  4. Jayasumana, C.; Fonseka, S.; Fernando, A.; Jayalath, K.; Amarasinghe, M.; Siribaddana, S.; Gunatilake, S.; Paranagama, P., Phosphate fertilizer is a main source of arsenic in areas affected with chronic kidney disease of unknown etiology in Sri Lanka. SpringerPlus, 2015,4 (1):90
  5. Paranagama P.; Jayasumana C.; Fonseka S.; Fernando A.; Jayalath K.; Amarasinghe M., Presence of arsenic in agrochemicals and their association with the agricultural chronic kidney disease in Sri Lanka. The Journal of Toxicology and Health, 2014,Photon 104: 352-361

International:

  1. Deeyamulla M. P.; Jayalath K. G.; De Silva R. C. L., Background levels of heavy metals in moss Hyophila involutaas a bioindicator using four strict nature reserves in Sri Lanka: Sinharaja rainforest, Knuckles mountain range, Horton Plains National Park and Hakgala mountain forest, P iprc, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka 2016: 147.
  2. Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Atmospheric deposition of polycyclic aromatic hydrocarbons in moss Hyophila involutaaround the city of Kurunegala in Sri Lanka, Proceedings of the International Symposium on Water Quality and Human Health: Challenges Ahead. PGIS, Peradeniya, Sri Lanka 2016: 39
  3. Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Effect of transboundary pollution on atmospheric deposition of heavy metals around the city of Kandy in Sri Lanka, Proceedings of the International Symposium on Water Quality and Human Health: Challenges Ahead. PGIS, Peradeniya, Sri Lanka 2016: 45.
  4. Jayalath K. G.;De Silva R. C. L.; Deeyamulla M. P., Phytoremediation potential of Talinum  triangulare (Ceylon spinach) towards Cr in different soils. iprc, Faculty of Graduate Studies, University of Kelaniya, Sri Lanka 2015: 216.
  5. Doole F.T., Jayalath, K.G.and Subramanium S.S., Polycyclic aromatic hydrocarbons in water bodies and sediment around Kerawalapitiya and Kelanitissa power plants of Sri Lanka – preliminary study. Iprc Faculty of Graduate Studies, University of Kelaniya, Sri Lanka 2015: 217.
  6. Jayalath I. K. G.; Deeyamulla M. P.; De Silva R. C. L., A comparison of heavy metal deposition around two metropolitan areas in the western province of Sri Lanka, using a moss Hyophila involutaas a biomonitor. HETC symposium. 2014: 115.
  7. Jeewanthi K. N. T. C.; Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Atmospheric deposition of poly aromatic hydrocarbons in moss (Hyophila involuta) in some urban and remote areas in western province, Sri Lanka, Proceedings of the International Symposium on Water Quality and Human Health: Challenges Ahead. PGIS, Peradeniya, Sri Lanka 2013: 12.
  8. Fernando, A.;  Paranagama, P.A.;  Jayalath, K.; Fonseka, S.; Amarasinghe, M.;  Senanayeke, K.;  Jayasumana, C., Mahamitawa , P.; Wijewardhane, C.; Samarasinghe, D.; Dahanayake, K.,Determination of arsenic content in synthetic and organic manure based fertilizers available in Sri Lanka, Proceedings of the International Conference on Chemical Sciences, Sri Lanka Foundation Institute,Colombo 07, Sri Lanka 2012: 32.
  9. Fonseka, S.; Paranagama, P.A.; Jayalath, K.; Amarasinghe, M., Senanayeke, K., Jayasumana, C., Preliminary investigations on the presence of arsenic in groundwater surface water and soils around Siyambalangamuwa and Moragolla in the Kurunegala district,Proceedings of the International Conference on Chemical Sciences, Sri Lanka Foundation  Institute, Colombo 07, Sri Lanka 2012: 144.
  10. Fonseka S.; Jayasumana C.; Jayalath K.; Amarasinghe. M.; Senanayake  K.; Wijewardhana C.; Samarasighe D.; Dahanayake K.; Mahamithawa P.; Paranagama P. A., Arsenic and hardness in ground water from Chronic Kidney Disease of unknown etiology (CKDu) prevalent areas and non CKDu prevalent areas in Sri Lanka. Proceedings of the International Symposium on Water Quality and Human Health: Challenges Ahead. PGIS, Peradeniya, Sri Lanka2012: 60

Local:

  1. Jayalath, K. G. & Pathirannehe, P. N. S.  The effectiveness of online group discussions for chemistry practicals Proceeding of the Open University Research Sessions (OURS 2020), 2020: 2.
  2. Jayalath K. G.;Deeyamulla M. P.; De Silva R. C. L., Atmospheric deposition of polycyclic aromatic hydrocarbons (PAHs) around two metropolitan areas in the western province of Sri Lanka, using moss (Hyophila involuta) as a biomonitor. Sri Lanka Ass. Adv. Sci. 2015, 71: 135.
  3. Jayalath K. G.;Deeyamulla M. P.; De Silva R. C. L., Heavy metal air pollution study in the city of Anuradhapura using moss (Hyophila involuta) as a biomonitor during two monsoon seasons in Sri Lanka. PGIS Research Congress 2015: 36. 
  4. Dilhani G. R. R.; Deeyamulla M. P.; Jayalath K. G., The role of washing of moss samples  in analysis of heavy metal concentrations in moss biomonitoring studies. Sri Lanka Ass. Adv. Sci.2014, 70: 81. 
  5. Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Comparison of atmospheric deposition of heavy metals in Kandy and Puttalam areas in Sri Lanka moss (Hyophila involuta) as a bioindicator: Short term study. Sri Lanka Ass. Adv. Sci.2013, 69: 157.
  6. Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., The role of washing of moss samples  in analysis of heavy metal concentrations in moss biomonitoring studies. Sri Lanka Ass. Adv. Sci.2013, 69: 274.
  7. Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Pilot survey to monitor atmospheric deposition of heavy metals in moss species (Hyophila involuta) in Kurunegala using two different digestion methods. Annual Research Symposium: Faculty of Graduate Studies, University of Kelaniya, Sri Lanka 2013, 14: 13.
  8. Liyanage A. L. L. A.; Jayalath K. G.; Deeyamulla M. P.; De Silva R. C. L., Identification of wild plants to phytoextract chromium from polluted terrestrial environments. Sri Lanka Ass. Adv. Sci.2013, 69: 158.
  9. Fonseka S. I.; Jayalath K.; Amarasinghe. M.; Mahamithawa A. M. P., Senanayake V. K.; Paranagama P. A., Hardness and presence of arsenic in aquifers of selected CKDu prevalent and other areas in Sri Lanka, SLMA-Research symposium on CKDu 2012: 14. 
  10. Paranagama P. A.; Fonseka S. I.; Jayalath K.; Amarasinghe. M.D., Graphite furnace based (GFAAS) method is more appropriate than hydride generator based (HGAAS) method in using Atomic Absorption Spectrometry to detect arsenic in hardwater collected from aquifers of CKDu endemic areas in Sri Lanka, SLMA-Research symposium on CKDu 2012: 13.
  11. Jayalath J. I. K. G.; Deeyamulla M. P., Moss (Barbula sp.) as a bioindicator to monitor heavy metal pollution: Comparison of native moss and moss bag technique, Sri Lanka Ass. Adv. Sci.2008, 64: 168.

12. Jayalath J. I. K. G.; Deeyamulla M. P.; Senanayake S. P., Moss (Barbula sp.) used as a bioindicator of atmospheric metal deposition: Estimation of uptake efficiencies, Proc. Sri Lanka        Ass. Adv. Sci. 2008, 64: 279.

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