Leachates from municipal landfills introduce toxic heavy metals into water, causing bioaccumulation. This study assesses metal levels and potential human health risks associated with consuming and . Inductively coupled plasma mass spectrometry detected Cd, Cu, Cr, Ni, Pb, and Zn in both fish species. Leachate metal concentrations meet international discharge standards, Cd, Cr, and Pb in the fish exceed the international accepted values. Gastrointestinal tract+liver samples show significant variation between species, particularly in Cd and Pb. EDI, THQ/HI, and TR for the both species fall below TDIs, lower than the limit of 1, and within the acceptable range of the US-EPA permissible limit, respectively. Fish consumption appears safe regarding carcinogenic risk, but exceeding metal limits could impact heavy metals accumulation in the local food chain. Raising public awareness is crucial, and governmental agencies and environmental organizations should enhance waste treatment technologies and enact relevant health legislation.

中文翻译：

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垃圾填埋场环境中的有毒重金属（老挝万象）：鱼类种类和相关健康风险评估


城市垃圾填埋场的渗滤液将有毒重金属引入水中，导致生物蓄积。这项研究评估了与消费和相关的金属含量和潜在的人类健康风险。电感耦合等离子体质谱法在两种鱼类中检测到了镉、铜、铬、镍、铅和锌。渗滤液金属浓度符合国际排放标准，鱼中Cd、Cr、Pb超过国际公认值。胃肠道+肝脏样本显示物种之间存在显着差异，特别是镉和铅。两种物种的 EDI、THQ/HI 和 TR 分别低于 TDI、低于限值 1 和 US-EPA 允许限值的可接受范围内。考虑到致癌风险，鱼类消费似乎是安全的，但超过金属限量可能会影响当地食物链中重金属的积累。提高公众意识至关重要，政府机构和环保组织应加强废物处理技术并制定相关健康立法。