Polychlorinated biphenyls residues in bivalve shellfish from Niger Delta: distribution pattern, tissue burden and food safety assessment.

IF 2.5 3区农林科学 Q2 CHEMISTRY, APPLIED Food additives & contaminants. Part B, Surveillance Pub Date : 2023-07-17 DOI:10.1080/19393210.2023.2233011

Sunday Peter Ukwo, Ofonmbuk Ime Obot, Imeh Kokoette Esenowo

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Abstract

This study investigated the distribution pattern, tissue burden, and safety of bivalve shellfish for human consumption. Edible species of bivalve shellfish harvested from Niger delta were screened for polychlorinated biphenyl (PCB) contaminants. Instrumental analysis and quantification of PCB congeners were performed using gas chromatography fitted with electron capture detector (GC-ECD). Results indicated an accumulation of PCB concentration of 0.36 ng/g, 0.89 ng/g, 0.98 ng/g, and 1.73 ng/g at Andoni, Iko Town, Ibeno, and Bonny, respectively. The PCB burden showed bloody cockle at Bonny location recorded the highest concentration of PCB congeners (2.37 ng/g), closely followed by mangrove oyster (2.13 ng/g) at Iko Town location, while Donax clam at Ibeno (0.09 ng/g) has the least PCB burden. The results obtained were lower in relation to food regulatory threshold. However, PCB tissue burden of bivalve shellfish harvested at the study locations indicated an environment impacted by anthropogenic activities that could negatively affect human health which depends on these shellfish for food.

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尼日尔三角洲双壳贝类中多氯联苯残留:分布格局、组织负担和食品安全评价。

本研究调查了人类食用双壳贝类的分布格局、组织负担和安全性。从尼日尔三角洲捕捞的可食用双壳贝类进行了多氯联苯(PCB)污染物的筛选。采用气相色谱-电子捕获检测器(GC-ECD)对PCB同系物进行了仪器分析和定量。结果表明，多氯联苯累积浓度分别为0.36 ng/g、0.89 ng/g、0.98 ng/g和1.73 ng/g。多氯联苯负荷显示，Bonny地点的血蛤多氯联苯同源物浓度最高(2.37 ng/g)， Iko镇地点的红树林牡蛎浓度次之(2.13 ng/g)， Ibeno地点的Donax蛤多氯联苯负荷最低(0.09 ng/g)。所得结果低于食品监管阈值。然而，在研究地点收获的双壳贝类的多氯联苯组织负荷表明，环境受到人为活动的影响，可能对依赖这些贝类作为食物的人类健康产生负面影响。

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

Food additives & contaminants. Part B, Surveillance 农林科学-毒理学

CiteScore

5.30

自引率

10.30%

发文量

审稿时长

2.7 months

期刊介绍： Food Additives & Contaminants: Part B publishes surveillance data indicating the presence and levels of occurrence of designated food additives, residues and contaminants in foods, food supplements and animal feed. Data using validated methods must meet stipulated quality standards to be acceptable and must be presented in a prescribed format for subsequent data-handling. Food Additives & Contaminants: Part B restricts its scope to include certain classes of food additives, residues and contaminants. This is based on a goal of covering those areas where there is a need to record surveillance data for the purposes of exposure and risk assessment. The scope is initially restricted to: Additives - food colours, artificial sweeteners, and preservatives; Residues – veterinary drug and pesticide residues; Contaminants – metals, mycotoxins, phycotoxins, plant toxins, nitrate/nitrite, PCDDs/PCFDs, PCBs, PAHs, acrylamide, 3-MPCD and contaminants derived from food packaging. Readership: The readership includes scientists involved in all aspects of food safety and quality and particularly those involved in monitoring human exposure to chemicals from the diet. Papers reporting surveillance data in areas other than the above should be submitted to Part A . The scope of Part B will be expanded from time-to-time to ensure inclusion of new areas of concern.