Environmental, ecological and health risks of trace metals in sediments of a large reservoir on the Euphrates River (Turkey)
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The contents of trace metals (Cd, As, Pb, Cr, Cu, Zn, Ni, Co, Mn and Fe) in sediment samples from eleven sampling sites in The Keban Dam Reservoir, which is Turkey's second biggest reservoir, were examined to evaluate spatial distribution, possible sources, contamination status and environmental, ecological and health risks of these metals. The results indicated that enrichment factor, geoaccumulation index and contamination factor values were higher at sampling sites receiving industrial and domestic wastewater discharges. Only Cr and Ni concentrations exceeded their corresponding probable effect concentrations in 47.7% and 93.2% of the samples. Ecological risk factor and ecological risk index values at all sites were <40 and <150, respectively, indicating low ecological risk in the reservoir. Cluster, correlation and factor analyses suggested that Cr and Ni originated from mixed sources of lithogenic and anthropogenic origins, while other metals mainly originated from natural sources. For children and adults, hazard quotient value of each metal from ingestion and dermal contact pathways did not exceed 1. Carcinogenic risk (CR) values of arsenic from these two exposure pathways and total CR value were within the range of acceptable risks. Thus, in terms of recreational uses, the reservoir is considered to be safe for human health.
Açıklama
Anahtar Kelimeler
Trace metal pollution, Freshwater reservoir, Sediment quality guidelines, Multivariate statistical methods, Sediment contamination indices, Ecological and health risk assessment
Kaynak
Environmental Research
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
187
Sayı
Künye
Varol, M. (2020). Environmental, ecological and health risks of trace metals in sediments of a large reservoir on the Euphrates River (Turkey). Environmental Research, 187, 109664.
