Abstract
Evaluation of Heavy Metal Contamination and Ecological Risk Assessment in Sediments of Karun using Aquatic Pollution Indices
Highlights
Background & Aims of the StudyThe current study was designed to determine the quality of sediments in Karun in Ahvaz, Iran, according to aquatic pollution indices
The comparison of indices between stations showed that in summer, stations 3 and 4 were medium-low priority side according to the mean effects range-median quotient and were reported with moderate ecological risk based on the potential ecological risk index (PERI)
Four indices were utilized in the present study, including the PERI, biological risk index, based sediment quality guidelines (SQGs) to specify the environmental risk of heavy metals, hazard quotient (HQ), and mHQ, for the assessment of contamination with
Summary
The rapid advancement of urban and industrial growth has turned into a matter of concern for the aquatic environment and changed the aquatic system with the progressively high release of contaminants into these ecosystems [1] Among these toxic contaminations, the contamination with heavy metals in aquatic environments due to its potential hazards and related threats to human health and aquatic organisms has been identified as a serious menace to these ecosystems and has. Aims of the study The present study aimed to study the concentration levels of heavy metals (i.e., lead, zinc, chrome, and cadmium) in the sediments of Karun in which there are water supply points for treatments in Ahvaz and Mollasani, Iran, in two different seasons. The current study surveyed the impact of contamination with heavy metals using several approaches, namely PERI, biological risk index, HQ, and mHQ
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