Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)

In this research, spatial – temporal variations of water quality in the fluvial components of the Hasanağa Stream Basin were evaluated by using the Water Quality Index. Surface water samples were taken from seven stations selected on the basin in the winter seasons of 2019 and 2020. Eleven variables...

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Main Author: Cem Tokatlı
Format: Article
Language:English
Published: Istanbul University Press 2021-03-01
Series:Aquatic Sciences and Engineering
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Online Access:https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/B4F58A4724CE4274BAD217AF19B0B0E4
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author Cem Tokatlı
author_facet Cem Tokatlı
author_sort Cem Tokatlı
collection DOAJ
description In this research, spatial – temporal variations of water quality in the fluvial components of the Hasanağa Stream Basin were evaluated by using the Water Quality Index. Surface water samples were taken from seven stations selected on the basin in the winter seasons of 2019 and 2020. Eleven variables including dissolved oxygen, oxygen saturation, pH, electrical conductivity, total dissolved solids, salinity, turbidity, nitrate, nitrite, phosphate and sulphate were measured in freshwater samples. The Water Quality Index (WQI) and Cluster Analysis (CA) were applied to the detected data in order to determine the differences among the spatial – temporal contamination levels and classify the investigated locations according to their similar water quality characteristics. According to the detected data, the water of the Hasanağa Stream Basin has 1. – 2. Class quality in 2019 and 2. – 3. in 2020, in general. According to the results of WQI, although it was determined that the water quality decreased significantly in 2020, the basin was found to be of "A Grade – Excellent" water quality (<50) in both 2019 and 2020. According to the results of the CA, 3 statistical clusters were formed and they were named as “less polluted zone”, “moderate polluted zone” and “more polluted zone”.
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spelling doaj-art-d00c90d942f2408fbe0e3673c4d392c82025-08-20T02:28:32ZengIstanbul University PressAquatic Sciences and Engineering2602-473X2021-03-01362667110.26650/ASE2020768078123456Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)Cem Tokatlı0https://orcid.org/0000-0003-2080-7920Trakya Üniversitesi, Edirne, TurkiyeIn this research, spatial – temporal variations of water quality in the fluvial components of the Hasanağa Stream Basin were evaluated by using the Water Quality Index. Surface water samples were taken from seven stations selected on the basin in the winter seasons of 2019 and 2020. Eleven variables including dissolved oxygen, oxygen saturation, pH, electrical conductivity, total dissolved solids, salinity, turbidity, nitrate, nitrite, phosphate and sulphate were measured in freshwater samples. The Water Quality Index (WQI) and Cluster Analysis (CA) were applied to the detected data in order to determine the differences among the spatial – temporal contamination levels and classify the investigated locations according to their similar water quality characteristics. According to the detected data, the water of the Hasanağa Stream Basin has 1. – 2. Class quality in 2019 and 2. – 3. in 2020, in general. According to the results of WQI, although it was determined that the water quality decreased significantly in 2020, the basin was found to be of "A Grade – Excellent" water quality (<50) in both 2019 and 2020. According to the results of the CA, 3 statistical clusters were formed and they were named as “less polluted zone”, “moderate polluted zone” and “more polluted zone”.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/B4F58A4724CE4274BAD217AF19B0B0E4hasanağa stream basinwater quality indexcluster analysis
spellingShingle Cem Tokatlı
Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
Aquatic Sciences and Engineering
hasanağa stream basin
water quality index
cluster analysis
title Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
title_full Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
title_fullStr Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
title_full_unstemmed Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
title_short Assessment of Spatial – Temporal Variations in Freshwater Pollution by Means of Water Quality Index: A Case Study of Hasanağa Stream Basin (Edirne, Turkey)
title_sort assessment of spatial temporal variations in freshwater pollution by means of water quality index a case study of hasanaga stream basin edirne turkey
topic hasanağa stream basin
water quality index
cluster analysis
url https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/B4F58A4724CE4274BAD217AF19B0B0E4
work_keys_str_mv AT cemtokatlı assessmentofspatialtemporalvariationsinfreshwaterpollutionbymeansofwaterqualityindexacasestudyofhasanagastreambasinedirneturkey