Evaluation of human health risk assessment of potential toxic metals in commonly consumed crayfish (Palaemon hastatus) in Nigeria

Abstract

Concentrations of potentially toxic metals were determined in crayfish (Palaemon hastatus) commonly consumed in Nigeria using Atomic Absorption Spectrophotometry. Results revealed that Fe had the highest mean value of 18.88 AE 0.10 μg/g, while Pb had the least (0.91 AE 0.01 μg/g). Cluster analysis showed close inter-element relationships between the metals, indicating similar chemical properties and/or genetic origin. Correlation matrix indicated positive and significant correlations between Cr/Cd, Fe/Cd, Fe/Cr, Pb/Cd, Pb/Fe and Cu/Zn, establishing chemical affinity. Estimated daily intake, target hazard quotient and cancer risk showed that there was no health risk associated with the consumption of the crayfish. Relative risk showed that potential health risk could be attributed only to Cd level. The study concluded that consumption of the crayfish may not pose health risk to human health at the levels of the analysed metals, but should be consumed moderately to prevent bioaccumulation of the metals most importantly Cd.

Heavy metals in soils and edible tissues of Lepidium meyenii (maca) and health risk assessment in areas influenced by mining activity in the Central region of Peru

“…The estimated daily intake (EDI) of each element was quantified according to the Eq. (2) [ 60 , 61 ]: where Cm is the mean concentration of each metal (mg/kg); FIR is the average consumption of maca (0.096 and 0.180 kg/person/day for children and adults), which was obtained from the application of a questionnaire to families in the study area. We selected 97 volunteer families who consume maca hypocotyls in the three districts (30 in Junín, 25 in Carhuamayo and 42 in Ondores).…”

Advances in Troubleshooting Fish and Seafood Authentication by Inorganic Elemental Composition

“…Various analytical techniques have been used for the determination of the elemental content of fish and seafood throughout the last years [ 9 , 11 , 12 , 13 ]. Among these, atomic spectroscopic methods, such as atomic absorption spectrometry (AAS) [ 14 , 15 , 16 , 17 , 18 , 19 , 20 ] with flame [ 16 , 19 , 20 ] or electrothermal atomization [ 16 , 17 , 18 ], atomic fluorescence spectrometry (AFS) [ 21 ] inductively coupled optical emission spectrometry (ICP-OES) [ 16 , 22 ], inductively coupled plasma mass spectrometry (ICP-MS) [ 23 , 24 ], and X-ray fluorescence (XRF) [ 19 , 25 ], have been the most frequently employed. On the contrary, electroanalytical [ 26 ] or neutron-activation-based techniques, such as neutron activation analysis (NAA), have been used to a lesser extent [ 27 , 28 , 29 ].…”

Assessment of Trace Elements Supply in Canned Tuna Fish Commercialized for Human Consumption in Brazil

“…The AT is the average time (AT = ED × 365 days/year). The average daily fish consumption was set as 130 g/day, which is near the recommended amount [47,48], and it is the portion of choice once it is the content of one canned tuna. The non-carcinogenic health risk to humans by the intake of heavy metal-contaminated fish was obtained using a hazard quotient (HQ), which is a ratio of CDI and chronic oral reference dose (RfD), determined by the following Equation (3):…”

“…The pollution index (PI) was calculated following Equation (4) adapted by Adebiyi et al [47]. For PI > 1 values, there is an assumption of contaminated samples, whereas PI < 1 stand for non-contaminated samples.…”

“…The pollution index values of the samples are represented in Figure 2. For the interpretation of the pollution index results, it is known that a PI above 1 indicates sample contamination, and can be considered toxic [47]. Aluminum is the main pollutant, the most quantified in canned tuna, with a PI value of 47.…”