Shayeghi Mansoreh, Khoobdel Mehdi, Bagheri Fatemeh, Abtahi Mohammad, Zeraati Hojjatollah
Department of Medical Entomology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Asian Pac J Trop Biomed. 2012 Jul;2(7):564-9. doi: 10.1016/S2221-1691(12)60098-7.
To determine the amount of azinphos methyl and diazinon residues in two river fishes, Liza aurata and Cyprinus carpio, in the north of Iran.
This study was done during 2006-2007. In this survey, 152 water and fish samples from Gorgan and Qarasu rivers, north of Iran, were investigated. Sampling was done in three predetermined stations along each river. Organophosphorus compounds (OPs) were extracted from the fishes and the water of rivers. After extraction, purification and concentration processes, the amount and type of insecticides in water and fish samples were determined by high performance thin layer chromatography (HPTLC).
There was a significant difference in the residue of the insecticides in the water and fish samples between summer and other seasons in the two rivers. The highest amount of insecticides residue was seen during summer. In both rivers, the amount of diazinon and azinphos methyl residues in the two fishes was more than 2 000 mg/L in summer. There was no significant difference in insecticides residue between the fishes in two rivers. The diazinon residue was higher than the standard limits in both rivers during the spring and the summer, but the residual amount of azinphos methyl was higher than the standard limits only during the summer and only in Qarasu River.
It can be concluded that the amount of OPs in the water and the two fishes, Liza aurata and Cyprinus carpio, is higher than the permitted levels.
测定伊朗北部两种河鱼（金色小沙丁鱼和鲤鱼）中谷硫磷和二嗪农的残留量。
本研究于2006 - 2007年进行。在此调查中，对伊朗北部戈尔甘河和卡拉苏河的152份水和鱼样本进行了研究。沿每条河在三个预先确定的站点进行采样。从鱼和河水样本中提取有机磷化合物（OPs）。经过提取、净化和浓缩过程后，通过高效薄层色谱法（HPTLC）测定水和鱼样本中杀虫剂的含量和类型。
两条河流夏季与其他季节相比，水和鱼样本中杀虫剂残留存在显著差异。夏季杀虫剂残留量最高。在两条河流中，夏季两种鱼中二嗪农和谷硫磷的残留量均超过2000mg/L。两条河流的鱼之间杀虫剂残留无显著差异。春季和夏季两条河流中二嗪农残留均高于标准限值，但谷硫磷残留仅在夏季且仅在卡拉苏河中高于标准限值。
可以得出结论，水以及金色小沙丁鱼和鲤鱼这两种鱼中的有机磷化合物含量高于允许水平。
