潜在的有毒元素及其致癌性和非致癌性风险评估在一些商业重要鱼类从拉姆萨地区的物种
Mohammad Belal Hossain1,2, Md Moudud Ahmed2, Yeasmin Nahar Jolly3
1School of Engineering and Built Environment, Griffith University, Brisbane, QLD 4111, Australia.
Biology
|August 26, 2023
概括
南亚淡水鱼中的潜在有毒元素 (PTEs) 不构成重大健康风险. 在目前的水平下,食用包括和在内的受污染鱼类是安全的,对消费者没有重大危害.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 食品安全 食品安全
背景情况:
- 由于人类活动,水生生态系统越来越多地被 (Hg), (As) 和 (Pb) 等潜在有毒元素 (PTEs) 污染.
- 在全球范围内,人们对商用食品,特别是鱼类中存在危险元素的存在表示担忧.
- 这些PTE在人体中的协同作用和对抗作用需要进行彻底的风险评估.
研究的目的:
- 评估来自南亚主要淡水湿地四种选定的鱼类中六种PTE的污染状况.
- 进行与食用这些鱼类有关的人类健康风险评估.
- 为定期监测和减轻水环境中的重金属污染提供数据.
主要方法:
- 在Gutum (Lepidocephalichthys guntea),Baim (Macrognathus pancalus),Baila (Glossogobius giuris) 和Meni (Nandus nandus) 的可食用部分中分析潜在的有毒元素 (PTEs).
- 包括铁 (Fe), (Zn),铜 (Cu), (Pb), (As) 和 (Hg) 在内的PTE的量化.
- 估计每日摄入量 (EDI),危险指数 (HI),总目标危险系数 (TTHQ) 和消费者致癌风险 (CR) 的计算.
主要成果:
- 鱼类中PTE污染的程度按照以下顺序下降:Fe > Zn > Cu > Pb > As > Hg.
- 格洛索戈比乌斯 (Glossogobius giuris) 的Hg度最高 (0.42μg/g dw),而南都斯 (Nandus nandus) 的As度主要为 (<0.41μg/g dw).
- 所有计算的健康风险指数 (EDI,HI,TTHQ,CR) 都低于确定的安全限值,表明没有重大健康风险.
结论:
- 根据目前的消费速度,从这个南亚湿地的研究鱼类的消费不会对消费者造成重大健康风险.
- 在分析的鱼类中,包括Hg,As和Pb在内的PTE含量处于人类消费所能接受的范围内.
- 该研究强调了在水环境中定期监测PTE的重要性,以减轻潜在的重金属污染,并确保食品安全.
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