Statistical Analysis of Bursa Nilufer Creek’s Water Quality Parameters for Period of 2002-2010
- 1 Uluda? University, Institute of Science, Department of Environmental Engineering, Bursa, Turkey
- 2 Uluda? University, Faculty of Eng.-Arc., Department of Environmental Engineering, Bursa, Turkey
- 3 Uluda? University, Faculty of Administrative Sciences, De- partment of Econometrics, Bursa, Turkey
- 4 Anadolu University, Faculty of Eng., Department of Environmental Engineering, Eski?e- hir, Turkey
Abstract
Increasing contamination of water resources in the world and our country and decreasing water quality over time, not having met the objectives of utilization of water resources; it has increased the importance of water management. The monitoring of the water resources and evaluation of these monitoring results have given direction to the studies’ outcome in order to control factors that pollute water resources and reduce water quality. Nilüfer Creek is very important for both being a source of drinking and potable water and a discharge area for wastewaters for the city of Bursa. In this study, the results of the analysis belonging to the period between 2002-2010 which are taken from 15 points by General Directorate of Bursa Water and Sewerage Administration (BUWSA) were evaluated in relation to water quality of the Nilüfer Creek. Non-parametric methods were used in the evaluation of the water quality data due to the lack of normally distributed data. The identification of the best represented parameters of the water quality was provided by applying Principal Component Analysis. According to results of the analysis, the best representative 9 parameters from the 19 water quality parameters were defined as parameters of BOD 5 , COD, TSS, T.Fe, Zn, conductivity, NO 2 -N, Ni and NO 3 -N that taking part of the first two components.
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