Naz Saima, Chatha Ahmad Manan Mustafa, Danabas Durali, Khan Muhammad Farhan, Xu Youhou, Zhu Peng, Shafique Laiba
Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gulf University, Qinzhou 535011, China.
Department of Zoology, Government Sadiq College Women University, Bahawalpur 36100, Pakistan.
Toxics. 2023 Jul 7;11(7):596. doi: 10.3390/toxics11070596.
Heavy metal accumulation in freshwater ecosystem has become one of the major aquatic environmental concerns for freshwater flora and fauna due to their higher stability and bioaccumulation as well as bio-magnification properties. Furthermore, passing through the food web, these heavy metals affect human populations ultimately. This study assessed the heavy metal accumulation in in spring, autumn, and winter at different locations (I, II, and III) of Panjnad headwork. Furthermore, the human health risk assessment for the consumption of from the sampling locations was also carried out. Fish were collected from upper (I), middle (II), and lower (III) stream of Panjnad on a monthly basis. The current study evaluated the accumulation of Aluminum (Al), Arsenic (As), Barium (Ba), and Lead (Pb) in various fish organs (liver, kidney, gills, fins, skin, muscles and bones) and assessed their potential hazard to human health through health risk assessment indicators. The results demonstrated a significant difference ( < 0.05) in heavy metal accumulation in different fish organs, seasons, and locations. The accumulation of Al, As, Ba, and Pb were considerably higher in liver and kidney as compared to the other body organs and followed a trend of liver > kidney > gills > fins > skin > bones > muscle and the overall mean concentrations of metals in different body tissues of . were in the order of Al > As > Ba > Pb. The results also concluded that caught from the Panjnad headwork is not safe for human consumption due to higher values of (3.76), for Ba (3.27) and for As (6.4742).
由于重金属具有较高的稳定性、生物累积性以及生物放大特性，淡水生态系统中的重金属积累已成为影响淡水动植物的主要水生环境问题之一。此外，这些重金属通过食物链，最终会影响人类种群。本研究评估了春季、秋季和冬季潘杰纳德河水利枢纽不同位置（I、II和III）的重金属积累情况。此外，还对采样点鱼类的食用对人类健康的风险进行了评估。每月从潘杰纳德河的上游（I）、中游（II）和下游（III）采集鱼类。本研究评估了铝（Al）、砷（As）、钡（Ba）和铅（Pb）在各种鱼类器官（肝脏、肾脏、鳃、鳍、皮肤、肌肉和骨骼）中的积累情况，并通过健康风险评估指标评估了它们对人类健康的潜在危害。结果表明，不同鱼类器官、季节和位置的重金属积累存在显著差异（P<0.05）。与其他身体器官相比，肝脏和肾脏中Al、As、Ba和Pb的积累量要高得多，且呈现出肝脏>肾脏>鳃>鳍>皮肤>骨骼>肌肉的趋势，不同身体组织中金属的总体平均浓度顺序为Al>As>Ba>Pb。结果还得出结论，由于潘杰纳德河水利枢纽捕获的鱼类的靶标危害商（THQ）值较高（3.76）、Ba的THQ值（3.27）和As的THQ值（6.4742），因此供人类食用不安全。
