College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
Engineering Technology Research Center of Marine Ranching, Shanghai Ocean University, Shanghai, 201306, China.
Sci Rep. 2022 Apr 28;12(1):6927. doi: 10.1038/s41598-022-10975-6.
The study evaluated the nutritional quality in muscle tissues of nine commercially important marine fish species. And the concentrations of trace metals (i.e. As, Hg, Cu, Pb, Cr, Cd and Zn) in the muscles (edible part) and tissues (gill and liver) of fishes caught from Dachen fishing ground, the coast of Zhejiang Province, East China Sea, were determined, and the values of target hazard quotient (THQ) and the carcinogenic risk (TR) were calculated for assessing human health risk. Significant differences(P < 0.05) were observed in the proximate chemical composition of fish muscles in these species. The muscle protein content of fish species ranged from 12.36 to 23.41%. The muscle lipid content of fishes ranged from 0.48 to 2.54%. The accumulation capacity of heavy metals (except Cr) in livers and gills was higher than that in muscles. In addition, the accumulation ability of most fishes is related to the water layer they live, the fishes living in the demersal layer showed more accumulation of heavy metals than the middle-upper layer(except Cu). Estimated daily intake (EDI), target hazard quotient (THQ), hazard index (HI) and the carcinogenic risk (TR) assessed for potential human health risk implications suggest that the values were within the acceptable threshold for human. However, the carcinogenic risk(TR) of As and Cr was close to the critical limit (10). Therefore, in order to ensure the health and safety of human consumption, the continuous monitoring of heavy metals in Dachen fishing ground area is suggested.
本研究评估了 9 种商业上重要的海洋鱼类肌肉组织的营养质量。并测定了东海浙江省大陈渔场捕获的鱼类肌肉（可食用部分）和组织（鳃和肝脏）中痕量金属（如 As、Hg、Cu、Pb、Cr、Cd 和 Zn）的浓度，计算了目标危害系数（THQ）和致癌风险（TR），以评估人类健康风险。这些鱼类肌肉的基本化学成分存在显著差异（P<0.05）。鱼类肌肉的蛋白质含量范围为 12.36%至 23.41%。鱼类肌肉的脂肪含量范围为 0.48%至 2.54%。肝脏和鳃对重金属（Cr 除外）的积累能力高于肌肉。此外，大多数鱼类的积累能力与其生活的水层有关，底栖层鱼类比中上层鱼类（Cu 除外）积累更多的重金属。估计每日摄入量（EDI）、目标危害系数（THQ）、危害指数（HI）和致癌风险（TR）评估表明，这些值在人类可接受的范围内。然而，As 和 Cr 的致癌风险（TR）接近临界值（10）。因此，为了确保人类食用的健康和安全，建议对大陈渔场地区的重金属进行持续监测。
