Bioaccumulation of Heavy Metals in Finfish and Shellfish Samples From Tano River, Ghana: A Food Safety Issue

IF 1.9 4区农林科学 Q2 FISHERIES

Aquaculture Research Pub Date : 2026-04-08 DOI:10.1155/are/8285249

Harold Kobena Appiah, Isaac Osei Kusi, Kwasi Adu Obirikorang, Stephen Gyamfi, Daniel Adjei-Boateng, Regina Esi Edziyie

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Abstract

This study investigates mercury (Hg), cadmium (Cd), and arsenic (As) contamination in water, sediments, finfish, and shellfish from the Tano River in Ghana’s Western North Region. Forty-eight fish and shellfish samples (12 species) and 27 paired water/sediment samples were analyzed. Bioaccumulation patterns, lipid content, and fish condition factors (CFs) were assessed, while human health risks were evaluated using estimated daily intake (EDI), target hazard quotient (THQ), and carcinogenic risk index (CRI). Results show heavy metals’ contamination trends of water < sediment < shellfish < finfish, with Cd and Hg in water exceeding WHO and USEPA thresholds. Bioconcentration factors (BCFs) were highest for arsenic (up to 13.6), while fish such as Clarias gariepinus and Gnathonemus petersii displayed poor health indices. Noncarcinogenic risks (THQs) were below 1, but CRI values for Cd and As exceeded the 1.0 × 10⁻⁴ threshold, suggesting potential carcinogenic risks from long-term consumption. The paper provides valuable baseline data for food safety and ecological monitoring in Ghana.

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重金属在加纳塔诺河鳍鱼和贝类样品中的生物积累：一个食品安全问题

本研究调查了加纳西部北部地区塔诺河的水、沉积物、鳍鱼和贝类中的汞（Hg）、镉（Cd）和砷（As）污染。分析了48份鱼类和贝类样本（12种）和27份成对的水/沉积物样本。评估了生物积累模式、脂质含量和鱼类状况因素（CFs），同时使用估计每日摄入量（EDI）、目标危害商（THQ）和致癌风险指数（CRI）评估了人类健康风险。结果显示，水体、沉积物、贝类和鱼类重金属污染趋势，其中Cd和Hg超过WHO和USEPA的阈值。砷的生物浓度因子（BCFs）最高（达13.6），而克拉尼亚斯（Clarias gariepinus）和彼得螯虾（Gnathonemus petersii）等鱼类的健康指数较差。非致癌风险（thq）低于1，但Cd和As的CRI值超过1.0 × 10−4阈值，表明长期食用具有潜在的致癌风险。本文为加纳的食品安全和生态监测提供了有价值的基线数据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aquaculture Research 农林科学-渔业

CiteScore

4.60

自引率

5.00%

发文量

464

审稿时长

5.3 months

期刊介绍： International in perspective, Aquaculture Research is published 12 times a year and specifically addresses research and reference needs of all working and studying within the many varied areas of aquaculture. The Journal regularly publishes papers on applied or scientific research relevant to freshwater, brackish, and marine aquaculture. It covers all aquatic organisms, floristic and faunistic, related directly or indirectly to human consumption. The journal also includes review articles, short communications and technical papers. Young scientists are particularly encouraged to submit short communications based on their own research.