Şentürk T.Yıldız Ş.2024-07-222024-07-22201502504685http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16287Objective: This present investigation aimed at assessing the water quality of the Gediz River located in western Turkey. Methods: Some physicochemical parameters and nutrient concentrations of the surface water of Gediz River were determined over a period of twelve months (October to September 2012) at 5 sampling sites along the river. Results: Data on some ions namely NH4-N, NO2-N, NO3-N and PO-34-P were measured. The pH, temperature, electrical conductivity (EC), salinity and dissolved oxygen were also determined to assess the chemical status and pollution levels of the river. The measured data were given as mean, maximum, minimum values, respectively. In this context; the ranges for Water temperature [17.95°C±1.37ºC (30.2-4.5)], pH [7.45±0.06 (8.11-6.66)], Dissolved Oxygen [3.84±0.65 mg/L (6.25-2.43)], Electrical Conductivity (E.C) [1051.4±216.07 μS/cm (3000-296)], Salinity [0,16±0,05 ppt (0,8-0,1)], Ammonium nitrogen (NH4-N) [1.772±0.8228 mg/L (4.642-0.057)], Nitrite nitrogen (NO2-N) [0.605±0.4224 mg/L (2.312-0.050)], Nitrate nitrogen (NO3-N) [46.014±44.9878 mg/L (151.965-2.855)], Phosphate phosphorus (PO-34-P) [5.489±3.6356 mg/L (20.350-0.190)] were found to be higher than the natural background levels for surface water. Conclusion: This indicates pollution of the river water samples from the areas studied. Our findings highlighted the deterioration of water quality of the river due to anthropogenic and agriculturel activities. © 2015, Turkish Biochemistry Society. All rights reserved.EnglishAll Open Access; Gold Open Accessammoniacarbon dioxidedissolved oxygennitratenitritenitrogen fertilizerorganic matterphosphateriver waterArticledecompositionelectric conductivityinorganic nutrientnutrient contentoxidationpHphysical chemistrysalinitytemperaturewindArticle10.1515/tjb-2015-0003