EFFICIENCY OF WATER QUALITY INDEX APPROACH AS AN EVALUATION TOOL

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dc.contributor.authorBoyacioglu, Huelya
dc.contributor.authorGundogdu, Vildan
dc.date.accessioned2019-10-27T21:54:23Z
dc.date.available2019-10-27T21:54:23Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.description.abstractThis study aimed to demonstrate efficiency of documented index method "universal water quality index-UWQI" to evaluate surface water quality and investigate seasonal and temporal changes, in the case of Gediz River Basin Turkey. UWQI expressed results relative to levels according to criteria specified in European legislation (75-440 EEC). The method produced a unitless number ranging from 1 to 100 and a higher number was indicator of better water quality. Water quality is classified into five classes and index scores between 95-100 represent excellent and lower than 24 represent poor quality. In the study, dissolved oxygen-DO, pH, mercury-Hg, cadmium-Cd, total phosphorus-TP, biochemical oxygen demand-BOD and nitrate nitrogen-NO3-N have been chosen as index determinants. Samples analyzed for these variables were collected from five stations on monthly basis along two years. Based on UWQI classification scheme, water quality at sampling stations had scores below 40 and assigned to "marginal" which is between fair and poor quality class. On the other hand sub-indices of water quality determinants showed seasonal differences for some parameters. Cd concentrations were higher in "high flow" and lower values were observed in "low flow" periods. This was explained by negative impact of urban runoff on water quality. On the other hand DO concentrations were higher in "high flow" period. Under "low flow" conditions water quality at upstream stations (where the industrial density is low) was comparably better than downstream part. The study showed that index approach can be efficient tool to: a) evaluate water quality, b) investigate spatial and seasonal variations and finally, c) extract required information from complex data sets that is understandable by non-technical people.en_US
dc.identifier.doi10.2478/eces-2013-0017
dc.identifier.endpage255en_US
dc.identifier.issn1898-6196
dc.identifier.issn1898-6196en_US
dc.identifier.issue2en_US
dc.identifier.startpage247en_US
dc.identifier.urihttps://doi.org/10.2478/eces-2013-0017
dc.identifier.urihttps://hdl.handle.net/11454/48071
dc.identifier.volume20en_US
dc.identifier.wosWOS:000321253500002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherSoc Ecological Chemistry & Engineeringen_US
dc.relation.ispartofEcological Chemistry and Engineering S-Chemia I Inzynieria Ekologiczna Sen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectUniversal Water Quality Indexen_US
dc.subject75-440 EECen_US
dc.subjectsub-index functionen_US
dc.subjectindex scoreen_US
dc.subjectwater pollutionen_US
dc.titleEFFICIENCY OF WATER QUALITY INDEX APPROACH AS AN EVALUATION TOOLen_US
dc.typeArticleen_US

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