Contamination and ecological risk assessment of trace elements in sediments of the Anzali Wetland, Northern Iran

In this paper, concentrations of some heavy metals in surficial sediments of the International Anzali Wetland were measured, this wetland is located in the northern part of Iran. Sediment pollution levels were examined and analyzed using reliable pollution indices including Pollution Load Index (PLI...

Full description

Saved in:
Bibliographic Details
Published in:Water science and technology 2021-11, Vol.84 (9), p.2578-2590
Main Authors: Esmaeilzadeh, Marjan, Mahmodpor, Elham, Haghighat, Somayeh, Esmaeilzadeh, Sara, Aliani, Hamide, Yazdanfar, Najmeh
Format: Article
Language:English
Subjects:
international anzali wetland
pollution level indices
risk assessment
sediment quality guidelines
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, concentrations of some heavy metals in surficial sediments of the International Anzali Wetland were measured, this wetland is located in the northern part of Iran. Sediment pollution levels were examined and analyzed using reliable pollution indices including Pollution Load Index (PLI), Geoaccumulation Index (Igeo) and Enrichment Factor (CF), and finally it was revealed that heavy metal pollution ranged from low to moderate loads in the wetland. According to Sediment Quality Guidelines (SQGs) and Ecological Risk Index (ERI), it was concluded that As and Ni may have significant toxic impacts on aquatic organisms and also according to Effect Range Median (ERM), the toxicity probability of sediments in the Anzali wetland was estimated at 21%.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2021.455