Assessment of Nitrate and Phosphate Levels in Natural Water Bodies in Badulla District

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dc.contributor.authorSiriwardhana, R.G.H.L.
dc.contributor.authorRangika, G.D.N.
dc.contributor.authorShanika, K.K.A.
dc.contributor.authorWijewardana, Y.N.S.
dc.date.accessioned2021-02-08T07:20:43Z
dc.date.available2021-02-08T07:20:43Z
dc.date.issued2020
dc.description.abstractWater plays a significant role in human life and the environment. Due to the application of pesticides and weedicides in agricultural activities and dumping of solid wastes on open dumpsites, water resources are now in danger near urban and also rural areas of Badulla district. With the rainfall and widely spanned streams, it is very easy to contaminate the water resources in some areas of the Badulla district. The objective of this study was to identify the NO3 - and PO4 3- concentrations of selected natural water bodies in the Badulla district. Water samples were collected from natural water bodies located in all 13 divisional secretariat divisions including Haldummulla, Haputhale, Bandarawela, Ella, Welimada, Uva-Paranagama, Soranathota, Hali-Ela, Lunugala, Passara, Meegahakiula, Kandaketiya, and Badulla during the period from January to December 2019. Onsite measurements of temperature, pH, conductivity, and dissolved oxygen were measured using portable pH, Dissolved Oxygen (DO), and conductivity meters respectively. Laboratory analysis was conducted to determine NO3 - and PO4 3- concentrations using a UV spectrophotometer. The results were compared with the Sri Lanka Standards (SLS 614:2013) for potable water. The results revealed that NO3 - concentrations of all water samples were lying under the SLS potable water quality standards. PO4 3- concentrations of many water samples exceed the maximum permissible level of 2 mg L-1 for potable water. The water sample collected from “Narangahakiula” in Meegahakiula division showed the highest PO4 3- concentration value of 17.6 mg L-1 and all the water samples collected from Soranathota, Ella, Bandarawela, Welimada, Uva Paranagama Meegahakiula, Kandaketiya and some other water samples collected from Haldummulla and Passara showed higher PO4 3- concentration values more than the permissible level. The study indicates that the pollution potential of downstream areas where the catchment is disturbed by human activities. Keywords: Physico-chemical parameter, PO4 3- , NO3 - , Water quality, Water pollutionen_US
dc.identifier.isbn9789550481293
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/5826/proceeding_oct_08-274.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;International Research Conference
dc.subjectEnvironmental Scienceen_US
dc.subjectEcologyen_US
dc.subjectWater Management Systemen_US
dc.subjectNatural Wateren_US
dc.subjectWater Pollutionen_US
dc.titleAssessment of Nitrate and Phosphate Levels in Natural Water Bodies in Badulla Districten_US
dc.title.alternativeInternational Research Conference 2020en_US
dc.typeOtheren_US
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