Mercury and selenium in squids from the Pacific Ocean and Indian Ocean: The distribution and human health implications. (December 2021)

• Record Type: Journal Article
• Authors: Xie, Jingqian; Tao, Ling; Wu, Qiang; Li, Tiejun; Yang, Chenghu; Lin, Tian; Liu, Bilin; Li, Gang; Chen, Duofu
• Is Part Of: Marine pollution bulletin. Volume 173:Part A(2021)
• Publication Date: 2021-12
• Subjects: Mercury -- Selenium -- Global squid -- Antagonistic effects -- Health risks; 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.2021.112926
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Squids are globally distributed. Hg-contaminated squids may have high risks on humans. With abundant Se (antagonistic effect on Hg), the risks can be reduced. We collected squids around the world (Northwest Pacific Ocean, Southeast Pacific Ocean and Indian Ocean). Concentrations of Hg and Se were region-based and tissue-based. The higher content of Se were, the lower relative Hg levels were. The correlation between Se:Hg and Se was the strongest in the digestive gland. The values of Se:Hg and THQ all confirm that the health risk was lower in samples with higher concentrations of Se. Despite the risk assessment by Se:Hg, BRV and THQ analysis showed no risk when consumed in moderation, the maximum daily intake is provided based on Monte Carlo simulation. In future, when evaluating the risks cause by Hg exposure and providing the recommended daily amount, it may need to concurrent consideration of Se levels. Graphical abstract: Unlabelled Image Highlights: Hg and Se in squid varied within regions around the world and different tissues. The more Se, the stronger SeHg antagonism was in squids. Se levels should be considered in Hg deterministic and probabilistic health risks.