Assessment of nutrient and heavy metal contamination in surface water and sediments of the upper Tigris River, Turkey

Auteur(s) et Affiliation(s)

VAROL, M.

Ministry of Agriculture and Rural Affairs, Province Control Lab., Diyarbakır, Turquie

ŞEN, B.

Fac. of Aquaculture, Dep. of Basic Aquatic Sciences, Fırat Univ., Elazığ, Turquie

Description :
The concentrations of total nitrogen (TN), total phosphorus (TP), As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn in both surface water and sediment samples from the upper Tigris River were determined to evaluate the level of contamination. All metal concentrations in water samples, except Cu, were lower than the maximum permitted concentration for the protection of aquatic life. TN, TP and metal concentrations in sediment samples from the first three sites situated downstream of Ergani Copper Mine Plant were much higher than those at other sites. There was a significant decrease in the concentrations of heavy metals in sediment from the last site downstream of the Dicle Dam. Cluster analysis suggests that As, Cd, Co, Cu, Ni, Pb and Zn are derived from anthropogenic sources, particularly metallic discharges of the copper mine plant.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2012, vol. 92, p. 1-10, nombre de pages : 10, Références bibliographiques : 2 p.

Date :
2012

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais