Heavy metal concentrations in, and human health risk assessment of, three commercially valuable fish species in the lower Niger River, Nigeria

Madu, J. M.; Odo, GE; Asogwa, Chinweike Norman; Nwani, CD

doi:10.2989/16085914.2017.1410463

Cited by 6 publications

(1 citation statement)

References 22 publications

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“…However, in comparison to other tissues, muscles generally contain lower levels of metals [ 41 ]. It is possible for muscle levels to be undetectable even when the concentration in the liver is high [ 42 ]. In contrast, to other fish organs, muscles are not considered a primary site for metal intake in fish, as they typically contain lower levels of trace elements and metals compared to other organs but in a human health perspective the accumulation of heavy metals in fish muscles becomes more concerned.…”

Section: Discussionmentioning

confidence: 99%

Bioaccumulation Pattern and Health Risk Assessment of Heavy Metals in Cirrhinus mrigala at Panjnad Headworks, Bahawalpur, Pakistan

Naz

Chatha

Danabaş

et al. 2023

Toxics

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Heavy metal accumulation in freshwater ecosystem has become one of the major aquatic environmental concerns for freshwater flora and fauna due to their higher stability and bioaccumulation as well as bio-magnification properties. Furthermore, passing through the food web, these heavy metals affect human populations ultimately. This study assessed the heavy metal accumulation in Cirrhinus mrigala in spring, autumn, and winter at different locations (I, II, and III) of Panjnad headwork. Furthermore, the human health risk assessment for the consumption of C. mrigala from the sampling locations was also carried out. Fish were collected from upper (I), middle (II), and lower (III) stream of Panjnad on a monthly basis. The current study evaluated the accumulation of Aluminum (Al), Arsenic (As), Barium (Ba), and Lead (Pb) in various fish organs (liver, kidney, gills, fins, skin, muscles and bones) and assessed their potential hazard to human health through health risk assessment indicators. The results demonstrated a significant difference (p < 0.05) in heavy metal accumulation in different fish organs, seasons, and locations. The accumulation of Al, As, Ba, and Pb were considerably higher in liver and kidney as compared to the other body organs and followed a trend of liver > kidney > gills > fins > skin > bones > muscle and the overall mean concentrations of metals in different body tissues of C. mrigala were in the order of Al > As > Ba > Pb. The results also concluded that C. mrigala caught from the Panjnad headwork is not safe for human consumption due to higher values of TTHQIng (3.76), THQIng for Ba (3.27) and CRIng for As (6.4742).

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Section: Discussionmentioning

confidence: 99%