Asi Nehri Boyunca Ağır Metal Konsantrasyonunun Mekansal ve Zamansal Değişiminin Belirlenmesi

Water quality in surface waters is an important concern since it directly affects public health. Therefore, to provide adequate quality of water, monitoring studies have been conducted all around the world. In this study, multivariate statistical methods were used to understand the spatial and temporal changes in heavy metal concentration (including As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Zn) through Orontes River. Monitoring study results belonging to 5 different stations in Orontes River was obtained from State of Hydraulic Works and evaluated according to Box and Whisker plots, two-way PERMONAVA analysis and Mann-Kendall trend test. Results indicated that heavy metal concentrations has been increasing year by year. However, there is no significant spatial change in heavy metal concentration and rather homogenous distribution was observed through Orontes River. On the other hand, Iron (Fe) concentration in river was seasonal depended with no significant trend.

Determination of Spatiotemporal Variations in Heavy Metal Concentration through Orontes River

Yüzey sularındaki su kalitesi doğrudan halk sağlığını etkilediğinden önemli bir endişe kaynağıdır. Bu sebeple, yeterli kalitede su sağlamak amacıyla, bütün dünyada izleme çalışmaları yürütülmeye başlanmıştır. Bu çalışmada, Asi Nehri boyunca ağır metal konsantrasyonundaki (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Zn dâhil) mekânsal ve zamansal değişimleri anlamak için çok değişkenli istatistiksel yöntemler kullanılmıştır. Devlet Su İşleri tarafından Asi Nehri üzerinde izleme çalışması yürütülen 5 farklı istasyondan elde edilen izleme sonuçları Box-Whisker grafikleri, iki yönlü PERMONAVA testi ve MannKendall trend testi kullanılarak değerlendirilmiştir. Sonuçlar nehirdeki ağır metal konsantrasyonunun zamanla arttığını fakat ağır metal değerlerinin istasyonlar arasında önemli ölçüde değişmediğini, daha ziyade homojen bir dağılım gösterdiğini, ortaya koymuştur. Öte yandan, nehirdeki Fe konsantrasyonu belirli bir trend olmaksızın mevsimsellik göstermektedir.

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