墨西哥西北部两种沿海鲨鱼的肝组织和肌肉组织中的总汞含量。
Total mercury in liver and muscle tissue of two coastal sharks from the northwest of Mexico.
机构信息
Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Colosio S/N, Col. Centro, C.P. 83000, Hermosillo, Sonora, Mexico.
出版信息
Bull Environ Contam Toxicol. 2012 Jun;88(6):971-5. doi: 10.1007/s00128-012-0623-x. Epub 2012 Apr 18.
Total mercury (THg) in liver and muscle of three costal sharks from Mexico were evaluated. The highest concentrations of THg in muscle tissue of juveniles were found in Sphyrna lewini (0.82 ± 0.33 mg kg(-1) wet basis). Rhizoprionodon longurio adults had the highest concentrations (0.92 ± 1.03 mg kg(-1)). THg concentrations in liver were low compared to those found in muscle tissue; higher levels were found in liver of juvenile S. lewini (0.250 ± 0.07 mg kg(-1)). Results showed that 35 % of muscle tissue samples are above the precautionary limit (0.50 mg kg(-1) of THg) and a 7 % exceeded the maximum limit for human consumption (1 mg kg(-1)).
评估了来自墨西哥的 3 种侧齿鲨的肝脏和肌肉中的总汞（THg）含量。在幼年的 Sphyra lewini 肌肉组织中发现了最高浓度的 THg（0.82 ± 0.33 mg kg(-1)湿重基础）。成年的 Rhizoprionodon longurio 具有最高的浓度（0.92 ± 1.03 mg kg(-1)）。与肌肉组织相比，肝脏中的 THg 浓度较低；在幼年的 S. lewini 肝脏中发现了更高的水平（0.250 ± 0.07 mg kg(-1)）。结果表明，35%的肌肉组织样本超过了预防限度（0.50 mg kg(-1)的 THg），有 7%超过了人类食用的最大限度（1 mg kg(-1)）。
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