Heavy metals and metalloids in edible seaweeds of Saint Martin's Island, Bay of Bengal, and their potential health risks. (August 2022)

• Record Type: Journal Article
• Authors: Siddique, Mohammad Abdul Momin; Hossain, Md. Shakhawate; Islam, Md. Mohidul; Rahman, Mahfuzur; Kibria, Golam
• Is Part Of: Marine pollution bulletin. Volume 181(2022)
• Publication Date: 2022-08
• Subjects: Heavy metals -- Seaweed consumption -- Health risk -- Bangladesh; 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.2022.113866
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: The present study aimed to assess the levels of heavy metals and metalloids present in six seaweeds and their potential impact on consumption. The highest concentration of 11 metals, i.e., Be (0.47 mg/kg), Co (4.34 mg/kg), Cr (23.46 mg/kg), Cu (11.96 mg/kg), Fe (2290.26 mg/kg), Li (11.55 mg/kg), Ni (13.75 mg/kg), Pb (6.67 mg/kg), Ti (736.62 mg/kg), Tl (0.14 mg/kg), and V (33.09 mg/kg) were observed in Enteromorpha intestinalis (green seaweeds). Besides, the highest concentration of Ca (1071.09 mg/kg), Cd (5.81 mg/kg), Mn (1003.41 mg/kg), Sr (2838.86 mg/kg), and Zn (41.95 mg/kg) were found in Padina tetrastromatica (brown seaweeds). Eight metals (Pb, Cd, Zn, Cu, Ni, Mn, Cr, Fe) have been used to assess the potential health risk for adults, but no potential health risk was detected (HQ value > 1). The HI value of E. intestinalis and P. tetrastromatica were >1, implying that these two seaweeds are not safe for human consumption as there is a carcinogenic health risk for adults. Highlights: Analysis of 21 heavy metals and metalloids was performed by ICP-MS. E. intestinalis and P. tetrastromatica had elevated levels of metals and metalloids . For adults, no potential health risk was detected by consuming these six seaweeds (HQ value > 1). Hazard index value showed carcinogenic health risk for adults by significant intake of E. intestinalis & P. tetrastromatica.