Your search found 4 records
1 Hiscock, K. M.; Rivett, M. O.; Davison, R. M. (Eds.) 2002. Sustainable groundwater development. London, UK: The Geological Society. 352p. (Geological Society special publication no.193)
Groundwater development ; Groundwater management ; Aquifers ; Arsenic ; Simulation models ; Institutional development ; Water pollution ; Water quality ; Climate change / Europe / UK / Arab countries / Bangladesh / Sri Lanka / Russian Federation / Romania / Andean basins / Meherpur / Jaffna Peninsula / Valigamam / Lake Ladoga / Ploiesti
(Location: IWMI-HQ Call no: 333.9104 G000 HIS Record No: H038970)
2 Rajasooriyar, L. D.; Hiscock, K. M.; Boelee, Eline. 2008. Vulnerability of regional crystalline rock aquifers to fluoride contaminaton: a case study from southern Sri Lanka. Paper presented at Groundwater and Climate in Africa, an International Conference, Kampala, Uganda, 24-28 June 2008. 10p.
Aquifers ; Fluorides ; Water quality ; River basins ; Land use ; Irrigation water ; Canals ; Wells ; Case studies / Sri Lanka / Uda Walawe River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H041922)
(0.96 MB)
3 Prado, M. C. C. M.; Hiscock, K. M.; Rajasooriyar, L.; Boelee, Eline. 2010. Application of a combined hydrochemical and stable isotope approach to the study of the interaction between irrigation canal water and groundwater in southern Sri Lanka. [Abstract only]. In International Symposium, Sustainable Agriculture for Prosperity, Faculty of Agriculture, University of Ruhuna, Sri Lanka, 16 November 2010. Proceedings, Part 1 - Keynote speeches and abstracts. Kamburupitiya, Sri Lanka: University of Ruhuna. Faculty of Agriculture. pp.58.
Canals ; Irrigation schemes ; Irrigation water ; Groundwater ; Aquifers ; Wells ; Reservoirs ; Chlorides ; Fluorides ; Stable isotopes ; Water quality / Sri Lanka / Uda Walawe Irrigation Scheme
(Location: IWMI HQ Call no: 630 G000 INT Record No: H043342)
(0.6MB)
4 Rajasooriyar, L. D.; Boelee, Eline; Prado, M. C. C. M.; Hiscock, K. M.. 2013. Mapping the potential human health implications of groundwater pollution in southern Sri Lanka. Water Resources and Rural Development, 1-2:27-42. [doi: https://doi.org/10.1016/j.wrr.2013.10.002]
Health hazards ; Groundwater ; Contamination ; Water pollution ; Water quality ; Mapping ; Fluorides ; Arsenic ; Nitrates ; Irrigation water ; Aquifers ; Land use / Sri Lanka
(Location: IWMI HQ Call no: e-copy only Record No: H046220)
(1.92 MB)
In southern Sri Lanka, irrigation influences the concentrations of faecal bacteria and inorganic toxic contaminants in groundwater. We develop a groundwater vulnerability map describing the potential human health implications of harmful constituents in the Uda Walawe Basin, by overlaying geological and land use data with information describing the irrigation system, the oxygen isotope composition of water bodies, and the concentrations of selected contaminants. Given the limited data available, we examine the spatial distribution of harmful constituents and the potential human health risks. Fluoride poisoning from groundwater is the greatest health threat in our study area, where fluoride concentrations ranging from 0.1 to 9.2 mg/L are associated with a geologic origin. Arsenic occurs in high concentrations, up to 0.4 mg/L, in areas with low recharge, although the source of arsenic is not clear. Nitrate concentrations are low, ranging from 0.4 to 23 mg/L, despite high fertilizer inputs, except in areas with low recharge and non-favourable reducing conditions, where concentrations up to 136 mg/L are found. Faecal bacteria decrease from surface water via shallow groundwater to deep groundwater. Irrigation water appears to play a major role in increasing microbial contamination and diluting inorganic constituents in groundwater. Hence, the most important determinants for mapping groundwater vulnerability are local geology and infiltration of irrigation water. The method we present provides a qualitative, yet practical, alternative to commonly used vulnerability mapping techniques for countries where high human health risk via consumption of groundwater is inevitable, and thus acts as a tool for selecting preventive and curative measures.
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