课题组外籍博士生Aklima Nargis在Human and Ecological Risk Assessment: An International Journal上发表成果《Human health risk assessment of toxic elements in fish species collected from the river Buriganga, Bangladesh》。该研究主要对从孟加拉国受污染最严重的河流Buriganga河收集的各种鱼类进行了多元素（48）分析，以评估有毒元素对人类健康的危害。由于它们对人类健康的毒性，考虑了Be，V，Cr，Mn，Ni，Cu，Zn，As，Se，Mo，Cd，Ba，Hg，Pb，Bi和U等16种元素。结果表明，冬季各种鱼类的元素浓度高于季风。在16种元素中，Mn，Cu，Zn，Cd，Ba，Pb在冬季的某些鱼类中高于食品安全指南。季风中所有鱼类的THQ和TTHQ / HI值均小于1，而冬季大多数鱼类的THQ和TTHW / HI值均大于1。这些结果表明，通过食用受污染的鱼类可以对非致癌健康造成危害。只有As表现出低的癌症风险，而季风中的其他有毒元素没有观察到癌症风险。在冬季，Pb仅对Mystus vittatus（位点-7）显示出中度癌症风险，而对于其他鱼类，Pb则发现低癌症风险。因此可以得出结论，特别是在冬季，从Buriganga河收集的鱼类消费存在人类健康风险。
Abstract:
Multielement (48) analysis was carried out of various fish species collected from river Buriganga, the most polluted river in Bangladesh to assess human health risk by toxic elements. Sixteen elements that is, Be, V, Cr, Mn, Ni, Cu, Zn, As, Se, Mo, Cd, Ba, Hg, Pb, Bi, and U, were taken into account due to their toxicities on human health. Results show that concentrations of elements in various fish species were higher in winter than those in monsoon. Among 16 elements, Mn, Cu, Zn, Cd, Ba, Pb were above Food Safety Guideline in some fishes in winter. THQ and TTHQ/HI values were less than 1 for all fishes in monsoon while THQ and TTHW/HI values were more than 1 for most of fishes in winter. These results suggesting non-carcinogenic health hazard through consumption of contaminated fishes. Only As showed low cancer risk while no cancer risk was observed for other toxic elements in monsoon. In winter, Pb showed only moderate cancer risk for Mystus vittatus (site-7) while for other fishes low cancer risk was found by Pb. It can therefore be concluded that there is human health risk in consuming of fishes collected from river Buriganga especially in winter.
作者：Aklima Nargis, Harun-Or-Rashid, Anowara Khanam Jhumur, Md Easin Haque, Md Nazrul Islam, Ahsan Habib, Minggang Cai.
通讯作者：Minggang Cai |
