International Joint Laboratory On Synthetic Biology and Biomass Biorefinery, Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, China.
Environ Monit Assess. 2024 Nov 7;196(12):1178. doi: 10.1007/s10661-024-13322-6.
The invasive Asian clam species, Corbicula fluminea, has significant ecological and societal implications at both local and international levels due to its nutritional aspects. C. fluminea from four urban rivers in Bangladesh exhibited negative allometric growth and degree of contamination with potentially toxic elements (PTEs), which posed a concern to human health based on the AAS and USEPA risk models. The highest mean concentration of PTEs followed a decreasing order: Zn (155.08 ± 4.98 mg/kg) > Cu (53.96 ± 7.61 mg/kg) > Mn (14.29 ± 3.25 mg/kg) > Cd (2.23 ± 0.10 mg/kg) > Pb (1.64 ± 0.14 mg/kg) > As (1.51 ± 0.45 mg/kg) > Ni (1.25 ± 0.27 mg/kg) > Cr (0.65 ± 0.02 mg/kg) in C. fluminea and raising safety concerns. With the exception of Cr and Mn, all element levels were exceeded safety guideline value (SGV) (mg/kg. ww) and exhibited a strong positive correlation (p < 0.05) among the sites. The target hazard quotient of Mn is THQ > 1, and As showed a non-carcinogenic risk in children at OBR, BR, and MR site. The hazard index (HI > 1) value at the BR and MR sites indicated a public health risk associated with the clam. The target cancer risk (TCR) values for As, Cd, and Ni showed that consuming clams posed a carcinogenic risk to human health. These findings suggest that eating these clams may put consumers at significant risk for health issues related to As, Cd, Ni, and Mn exposure. The study emphasizes the need for strict monitoring and preventative measures to reduce the health risks posed by PTEs contamination in clams.
由于其营养价值，入侵亚洲贻贝物种 C. fluminea 在地方和国际层面都具有重要的生态和社会意义。来自孟加拉国四条城市河流的 C. fluminea 表现出负异速生长和潜在有毒元素 (PTE) 的污染程度，根据 AAS 和 USEPA 风险模型，这对人类健康构成了担忧。PTE 的最高平均浓度按降序排列为：Zn（155.08 ± 4.98 mg/kg）>Cu（53.96 ± 7.61 mg/kg）>Mn（14.29 ± 3.25 mg/kg）>Cd（2.23 ± 0.10 mg/kg）>Pb（1.64 ± 0.14 mg/kg）>As（1.51 ± 0.45 mg/kg）>Ni（1.25 ± 0.27 mg/kg）>Cr（0.65 ± 0.02 mg/kg），这引起了安全问题。除了 Cr 和 Mn 之外，所有元素的水平都超过了安全指导值（mg/kg.ww），并且在各站点之间表现出强烈的正相关（p<0.05）。Mn 的目标危害系数（THQ）>1，而 As 在 OBR、BR 和 MR 站点的儿童中表现出非致癌风险。BR 和 MR 站点的危害指数（HI>1）值表明与贻贝相关的公共卫生风险。As、Cd 和 Ni 的目标癌症风险（TCR）值表明，食用贻贝可能会对人类健康造成致癌风险。这些发现表明，食用这些贻贝可能会使消费者面临与 As、Cd、Ni 和 Mn 暴露相关的健康问题的重大风险。该研究强调需要严格监测和采取预防措施，以减少贻贝中 PTE 污染对健康的风险。
