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Title: | Assessment of Trace Metal levels in selected Marine Fish Species from Ghana and their potential Human Health Risk |
Authors: | Boateng, Charles Mario Manu, Edem |
Keywords: | Trace Metal levels Marine Fish Species Ghana potential Human Health Risk |
Issue Date: | 21-Oct-2020 |
Abstract: | The study examined the levels of six (6) heavy metals; Zinc (Zn), Lead (Pb), Copper (Cu),
Cadmium (Cd), Arsenic (As) and Mercury (Hg) in four marine fish species (Sardinella
maderensis, Dentex angolensis, Sphyraena sphyraena and Penaeus notialis) and their
potential health risks to potentially exposed populations in Ghana in the Gulf of Guinea
(GOG) region. The concentrations of Zn, Pb, Cu, Cd and As in fish tissues were analyzed
after microwave digestion of samples using an Inductively Coupled Plasma Mass
Spectrometry. Mercury was measured directly in the solid samples using an Automated
Mercury Analyzer. With the exception of Pb, all metals analyzed were detected in fish
samples. Highest concentrations of Cu (12.08 ± 1.46), Zn (19.20 ± 2.27), As (8.46 ± 2.42)
and Cd (0.03 ± 0.01) were observed in the muscle tissues of P. notialis while D. angolensis
recorded the highest concentration of Hg (0.14 ± 0.03). Largely, significant variations (p <
0.0001) were observed in the concentrations of metals across the various fish species
analyzed. Except for As, the levels of all metals were below the tolerable limits set by the
Food and Agricultural Organization (FAO), United States Environmental Protection
Agency (USEPA), the Australian and New Zealand Food standard code and the European
Commission (EC).The study however reveals significant carcinogenic risk due to As intake
for S. maderensis and D. angolensis in all age categories except for children between age
1 to 3 years, and all 9 age categories for P. notialis .It is therefore recommended that, the
consumption of P.notialis , D. angolensis and S. maderensis caught from the Ghana coastal
water is done with caution particularly among children and adolescents populations to
avoid possible non-carcinogenic effects and long-term carcinogenic effects later in life. |
Description: | Thesis submitted to the Department of Public Health, School of Medical Science in partial fulfillment of the requirements for the Degree of Master of Science, 2019. |
URI: | http://hdl.handle.net/123456789/13138 |
Appears in Collections: | College of Health Sciences
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