Determination of heavy metals including Hg, Pb, Cd, and Cr in edible fishes Liza abu, Brachirus orientalis and attributed cancer and non-cancer risk assessment

IF 1.3 Q4 ENVIRONMENTAL SCIENCES
Afsaneh Azadeh, A. Takdastan, Nematollah Jaafarzadeh Haghighi Fard, A. Babaei, Soleyman Alivand
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Abstract

Background: Heavy metals are considered as pollutants polluting aquatic ecosystems because of their toxic effects and bioaccumulation in organisms. They can cause chronic poisoning when ingested by human. The present study was conducted to determine the concentration of heavy metals, mercury (Hg), lead (Pb), cadmium (Cd), and chromium (Cr) in the muscle tissue of Liza abu and Brachirus orientalis fish in Mahshahr, and also, to estimate the risk of muscle consumption of these fish. Methods: Forty samples of both fish species were randomly selected and after preparation and extraction and digestion processes, the metals were measured using ICP-OES Agilent Model 5100. Results: The mean concentrations of Hg, Pb, Cd, and Cr in the muscle tissue of the Liza abu fish were 0.616 ± 0.383, 1.227 ± 1.77, 0.076 ± 0.030, and 0.567 ± 0.267 mg/kg dry weight, and in the muscle tissue of the Brachirus orientalis fish were 0.846 ± 0.659, 0.515 ± 1.245, 0.061 ± 0.047, and 0.586 ± 0.548 mg/ kg dry weight, respectively. HI for Liza abu and Brachirus orientalis was 0.025 and 0.336, respectively. Conclusion: According to the results of this study, the concentrations of Hg and Cr in the muscle tissue of Liza abu and Brachirus orientalis were slightly higher than some global standards such as the World Health Organization (WHO) and Food and Agriculture Organization (FAO). HQ index was below 1 for two fish species, meaning that there was no non-carcinogenic risk. In all samples analyzed, carcinogenic risk Cr was slightly above the permissible limit of 1×10-4 to 1×10-6 ،other metals were in this range.
食用鱼类中汞、铅、镉、铬的测定及致癌和非致癌风险评价
背景:重金属被认为是污染水生生态系统的污染物,因为它们具有毒性作用和在生物体内的生物积累。人体误食后可引起慢性中毒。本研究测定了Mahshahr地区Liza abu和Brachirus orientalis鱼肌肉组织中重金属、汞(Hg)、铅(Pb)、镉(Cd)和铬(Cr)的浓度,并对这两种鱼的肌肉消费风险进行了评估。方法:随机抽取两种鱼种样品40份,经制备、提取和消化后,采用ICP-OES Agilent Model 5100进行金属含量测定。结果:利扎阿布鱼肌肉组织中Hg、Pb、Cd和Cr的平均浓度分别为0.616±0.383、1.227±1.77、0.076±0.030和0.567±0.267 mg/kg干重,东方臂鱼肌肉组织中Hg、Pb、Cd和Cr的平均浓度分别为0.846±0.659、0.515±1.245、0.061±0.047和0.586±0.548 mg/kg干重。柠条和毛条的HI分别为0.025和0.336。结论:根据本研究结果,沙蚕和东方臂线虫肌肉组织中汞和铬的浓度略高于世界卫生组织(WHO)和联合国粮农组织(FAO)等国际标准。两种鱼类的HQ指数低于1,这意味着没有非致癌风险。在所有分析的样本中,致癌风险Cr略高于允许限度1×10-4至1×10-6 ،other金属在此范围内。
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
CiteScore
2.40
自引率
37.50%
发文量
17
审稿时长
12 weeks
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