• Choice Experiment Analysis of Non-market Values of Ecosystem Services 

  Dissanayake, Sahan T. M.; Vidanage, Shamen P. (springer, 2022)

  Small tank cascade systems (STCS) are clusters of hydrologically interconnected irrigation reservoirs with a 2500-year history located in the dryzones of Sri Lanka. They provide irrigation to 40 per cent of the irrigable ...
• Heavy metal toxicity to bacteria – Are the existing growth media accurate enough to determine heavy metal toxicity? 

  Rathnayake, I.; Megharaj, M.; Krishnamurti, G; Bolan, N. S.; Naidu, R. (Chemosphere, 2021, 2021)

  A new minimal medium was formulated considering the limitations of the existing media for testing heavy metal sensitivity to bacteria. Toxicity of cadmium and copper to three bacteria was investigated in the new medium and ...
• Green Bond: A new debt instrument for environmental resilient projects 

  Nanayakkara, K.G.M.; Colombage, Sisira (Environmental Monitoring and Management, University of Peradeniya, Sri Lanka, 2021, 2021)
• Sensitivity of freshwater organisms to cadmium and copper at tropical temperature exposures: Derivation of tropical freshwater ecotoxicity thresholds using species sensitivity distribution analysis 

  Arambawatta Lekamge, S. H.; Pathiratne, A.; Rathnayake, I.V.N. (Ecotoxicology and Environmental Safety, 2021, 2021)

  Tropical freshwater ecosystems are increasingly influenced by chemical stressors including heavy metals posing threats to biodiversity. Adequate ecotoxicity data are not available for native tropical freshwater species for ...
• Green fluorescent protein based whole cell bacterial biosensor for the detection of bioavailable heavy metals in soil environment 

  Rathnayake, I.; Megharaj, M; Naidu, R. (Environmental Technology & Innovation, 2021, 2021)

  A Green fluorescent protein (GFP) based whole cell bacterial biosensor was prepared using a bacterial strain sensitive to several heavy metals in order to detect bioavailable heavy metals in soils. The transformant, named ...
• We examine the pricing difference of Green Bonds (GB) and conventional bonds (CBs) in capital markets worldwide. Credit spread is used to observe if investors would like to pay a premium over par for GBs or CBs. This study uses panel data regression with hybrid model to analyse daily observations over the period from 2016 to 2017. We employ Option-Adjusted spread (OAS) to measure the credit spreads of bonds while controlling for bond specific, macroeconomic and global factors which influence the spread. With the hybrid model used in the panel data analysis, we were able to capture the fixed effects of variables in a random effect model. We find that GBs are traded at a premium of 63 basis points as against a comparable corporate bond issue. We find that the green label provides issuer an incentive to raise funds through issuing GBs while providing investors an opportunity to diversify their investments returns. Our findings provide several implications to the major players driving green bonds market in order to scale up the market to finance the required level of worldwide green investment needs. We stress an urgent need to support the growth of green bond market to achieve sustainable development through mitigating climate change challenges. 

  Nanayakkara, K.G.M; Colombage, Sisira (Environmental Monitoring and Management, University of Peradeniya, Sri Lanka, 2021, 2021)
• Heavy metal concentrations in the edible portions of Centella asiatica: Health risk toward chronic kidney disease of uncertain etiology 

  Wijeyaratne, W. M. Dimuthu Nilmini; Kumari, Ellewaththe Arachchilage Charuni Sewwandi (Department of Zoology and Environmental Management, Faculty of Science, University of Kelaniya, Kelaniya, Sri Lanka., 2021)

  Centella asiatica is a commonly consumed green leafy vegetable in many developing countries due its high nutritious value and availability at low cost. The present study was conducted to assess the Cd, Cr and Pb uptake ...
• Macrophytes as indicators of the ecological status of a tropical rehabilitated wetland ecosystem: Application of multivariate statistics and Ecological State Macrophyte Index (ESMI) 

  Wijeyaratne, Dimuthu; Bellanthudawa, Aravinda (Department of Zoology and Environmental Management, University of Kelaniya, Sri Lanka., 2021)

  The present study used the Ecological State Macrophyte Index (ESMI) and the multivariate statistical methods to assess the ecological status and the variation of macrophytes in a tropical wetland system. Six sites were ...
• Development of allometric equations to estimate the stem carbon content of Lumnitzera racemosa and Avicennia marina in a tropical mangrove ecosystem: A novel non-destructive approach 

  Wijeyaratne, W.M. Dimuthu Nilmini; Liyanage, Pawani Madhushani (Department of Zoolou and Environmental Management, Faculty of Science, University of Kelaniya, Sri Lanka, 2021)

  Non-destructive methods for estimating carbon storage capacity are becoming increasingly popular as they do not harm the individual trees or the ecosystem. However, currently the destructive method of sampling trees for ...
• Salinity Development in the Dry Zone of Sri Lanka – a Review 

  Najim, M.M.M.; Jayakody, K.P.K. (Salinity Development in Sri Lanka-Abstract, 2008)
• Health implications related to mismanagement of domestic and municipal wastewater in Sri Lanka. 

  Najim, M.M.M.; Rajapakshe, I.H. (Sage Publishers, India., 2011)

  TRADITIONALLY IN SRI LANKAN villages domestic wastewater, especially grey-water generated from kitchens and bathrooms of a household, fl ows along open unlined wastewater drains and is collected in a garden pool known ...
• Adapting Sri Lanka to Climate Change: Approaches to Water Modelling in the Upper Mahaweli Catchment Area 

  Gunawardena, M.P.; Najim, M.M.M. (Climate Change Research at Universities. Springer, Cham, 2017)

  Water flow and water quality changes in surface water bodies due to climate change is a major problem worldwide, typically in river eco-systems. To address these issues, proper monitoring of river flow variations and water ...
• Climate Change Induced Variations in Rainfall Patterns and Potential Adaptation Options of DL1b Agro-Ecological Zone of Sri Lanka: A Case Study 

  Udayanga, L.N.W.B.A.; Najim, M.M.M. (Institute of Biology Sri Lanka, Colombo., 2020)

  An analysis of the shifts and trends of climate patterns with respect to wet and dry events and rainfall seasonality is vital for the effective planning and management of water resources in tropical countries such as ...
• A Mathematical Model for Control of Drainage in an Irrigation System 

  Hajiyev, A.; Rustamov, Y.; Najim, M.M.M. (Emerging Challenges to Food Production and Security in Asia, Middle East, and Africa. Springer, Cham, 2021)

  Mathematical models describing the estimation of optimal amounts of water depend on various parameters such as the quality of soil that depends on many random factors. Investigation methods and approaches of the random ...
• Seasonal Variation of Rainfall at Attanagalu Oya Basin 

  Waniganethti, D.; Najim, M.M.M.; Halwatura, D (Geo-Informatics Society of Sri Lanka, Peradeniya. Sri Lanka., 2012)
• Trends in Dry and Wet Events of Rainfall in Aththanagalu Oya Basin 

  Udayanga, N.W.B.A.L.; Najim, M.M.M. (Geo-Informatics Society of Sri Lanka, Peradeniya. Sri Lanka, 2014)
• Water allocation modeling for Besut rice irrigation scheme in Malaysia 

  Aminul Haque, M.; Lee, T.S.; Najim, M.M.M; Mohammed, T.A. (Journal of the Agricultural Engineering Society of Sri Lanka,, 2004)
• Environmental Flow Assessment–An Analysis 

  Halwatura, D.; Najim, M.M.M (Journal of Environmental Professionals Sri Lanka,, 2014)

  Natural flow of a river is recognized as vital to sustaining riverine ecosystems. The biotic composition, structure and function of aquatic ecosystems depend largely on the hydrologic regimes; however flows of the world’s ...
• Quantitative analysis of water quality and heavy metals in water, sediments and tissues of Grey Mullet (Mugil cephalus) from the Negombo estuary 

  Mendis, B.R.C.; Najim, M.M.M.; Kithsiri, H.M.P (Colombo Journal of Multi-Disciplinary Research, 2015)

  The objectives of this study were to assess the levels of water quality and heavy metals of the water, sediments and fish tissues in the Negombo estuaries. For this study, samples were collected from sixteen sampling ...
• Bioaccumulation of Heavy Metals in the Selected Commercially Important Edible Fish Species Gray Mullet (Mugil cephalus) from Negombo Estuary. 

  Mendis, B.R.C.; Najim, M.M.M.; Kithsiri, H.M.P.; Azmy, S.A.M. (Journal of Environmental Professionals Sri Lanka,, 2015)

  Consumption of fish contaminated with non essential heavy metals such as Pb, Hg and Cd metals which exceed the required limits pose a risk to human health. Bioaccumulations of heavy metals in fish depend on several factors ...

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