Evaluation of Water Quality in a Highly Impacted Urban Stream Using Water Quality Index (Ankara Stream, Türkiye)

Year 2024, Volume: 7 Issue: 2, 117 - 126, 25.12.2024

Hazal Aydogdu Kayadelen , Nilsun Demir

https://doi.org/10.46384/jmsf.1501131

Abstract

Population growth along with other factors such as industrial, agricultural, and urban development, threaten freshwater resources in urban areas. Protecting urban water quality for ecological balance, water security, and energy production is crucial. The water quality index (WQI) provides an effective tool for assessing and managing water quality, and the Canadian Council of Ministers of the Environment Water Quality Index (CCME-WQI) is one of the extensively used method. In this study, the pollution status of the Ankara Stream which flows through the densely populated Ankara was examined using physico-chemical parameters collected from five stations (S1-S5), and the water quality status was estimated via CCME-WQI. The results revealed varying water quality across different points on the stream. S2, located in a protected area, exhibited the best quality; in contrast, S4 and S5, located downstream of a wastewater treatment plant, exhibited the poorest quality. The consistency of these findings with the literature and the historical records of Ankara Stream emphasize that the CCME-WQI can be used for the management of water resources with high levels of pollution. This study contributes to sustainable water management practices and highlights the need for advanced treatment techniques to control pollution in urban freshwater resources.

Keywords

CCME-WQI, Ankara Stream, Urban Water Quality, Pollution Assessment

Su Kalite İndeksi Kullanılarak Yüksek Derecede Etkilenen Kentsel Bir Akarsuda Su Kalitesinin Değerlendirilmesi (Ankara Çayı, Türkiye)

Abstract

Nüfus artışı ile sanayi, tarım ve kentsel bölgelerdeki gelişim gibi çeşitli nedenler, kentsel tatlı su kaynaklarını tehdit etmektedir. Ekolojik denge, su güvenliği ve enerji üretimi için kentsel su kalitesinin korunması yüksek öneme sahiptir. Su kalitesi indeksi (WQI), su kalitesinin değerlendirilmesi ve yönetimi için etkili bir yöntemdir ve Kanada Çevre Bakanlığı Konseyi Su Kalite İndeksi (CCME-WQI), bu yöntemlerin en yaygın kullanılanlarından birisidir. Bu çalışmada, yoğun nüfuslu Ankara şehrinin içinden akan Ankara Çayı'nın kirlilik durumu, beş istasyondan (S1-S5) elde edilen fiziko-kimyasal parametreler kullanılarak incelenmiş ve su kalitesi CCME-WQI ile tahmin edilmiştir. Sonuçlar, çayın farklı noktalarında değişen su kalitesini ortaya koymuştur. Korunan alanda bulunan S2, en iyi kalite değerine sahipken, atık su arıtma tesisinin mansabında bulunan S4 ve S5, en kötü kaliteyi sergilemiştir. Bu bulgular, Ankara Çayı’na ait geçmiş veriler ve literatür ile tutarlılık göstererek, CCME-WQI'in yüksek kirliliğe sahip su kaynaklarının yönetimi için kullanılabileceğini ortaya koymaktadır. Bu çalışma, sürdürülebilir su yönetimi uygulamalarına katkıda bulunmakta ve kentsel tatlı su kaynaklarındaki kirliliği kontrol etmek için ileri arıtma tekniklerine duyulan ihtiyacı vurgulamaktadır.

Keywords

CCME-WQI, Ankara Çayı, Kentsel su kalitesi, Kirlilik değerlendirmesi

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