Spatial distribution, partitioning, ecological risk and source apportionment of potential toxic elements in water and sediments of the Hoor Al-Azim wetland and their bioaccumulation in selected commercial fish species. (November 2021)

• Record Type: Journal Article
• Authors: Sheikh Fakhradini, Sara; Moore, Farid; Keshavarzi, Behnam; Naidu, Ravi; Wijayawardena, Ayanka; Soltani, Naghmeh; Rostami, Soqra
• Is Part Of: Marine pollution bulletin. Volume 172(2021)
• Publication Date: 2021-11
• Subjects: Potential toxic element (PTE) -- Source apportionment -- Pollution indices -- Bioaccumulation -- Health risk -- Hoor Al-Azim wetland; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2021.112875
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The potentially toxic elements (PTEs) concentrations in water and sediments were measured in the Hoor Al-Azim wetland to evaluate the spatial distribution, pollution rate, fate, partitioning, and ecological risk and also to recognize the PTEs sources in sediments using MLR-APCs (multiple linear regression-absolute principal component scores) receptor model. The human health risk was investigated based on the seven fish species consumed in the study area. Based on the results, water and sediment contamination was observed at some stations in the southern part of the wetland where agricultural water drains. Also, the sediments of oil well drilling disposal site was polluted by PTEs. Based on the MLR-APCs model, 80.8% of Mo and 81.5% of Se originated from agricultural source. Total target hazard quotients (TTHQ) values suggested that the children could experience adverse health effects due to consumption of Coptodon zillii, Aspius vorax, Carassius auratus and Carasobarbus luteus . Graphical abstract: Unlabelled Image Highlights: PTEs were evaluated in sediment, water, and fish of Hoor Al-Azim wetland. Se and Mo mainly were originated from agricultural sources. Ecological risk from the presence of PTEs in sediment is low to high. Eating four fish species from Hoor Al-Azim wetland cause health risk in children. The highest BAF values were recorded for Se in all fish species.