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首页> 外文期刊>Bangladesh Journal of Zoology >Organochlorine pesticide residues in different fishes and shell fishes collected from the flood plains of Sonargaon upazila, Bangladesh
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Organochlorine pesticide residues in different fishes and shell fishes collected from the flood plains of Sonargaon upazila, Bangladesh

机译：从孟加拉国索诺加苏府洪水收集的不同鱼类和壳鱼中的有机氯杀虫剂残留物

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The present study was carried out to assess the concentrations of organochlorine pesticide residues (DDTs; DDE, DDD, 2,4′-DDT and 4,4′-DDT) in natural fishes and prawn species during rainy-season (June-September, 2014) from flood plains of Sonargaon upazila, Bangladesh. The samples were extracted by Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) method and the extracts were cleaned-up by using H2SO4. Analysis of the samples for DDTs residues were carried out by using Gas Chromatograph with Electron Capture Detector (GC-ECD). Controlled fish sample (Cultured Rui fish) was used for the recovery experiments. Percent (%) recovery was found to be in the range of 70%- 113%. The total DDTs contents of the head of different fish and prawn species ranged from 7.53 ± 0.50 ng/g in Jatpunti (P. sophore) to 39.20 ± 3.76 ng/g in Bele (G. giuris) and of the body from 7.55 ± 0.50 ng/g in Jatpunti (P. sophore) to 41.93 ± 3.63 ng/g in Chewa (P. elongatus). While the total DDTs of the total body of seven fish and two prawn species ranged from 4.56 ng/g in Gurachingri (unidentified) to 37.15 ng/g in Chewa (P. elongatus). In the present study, 66.66% samples having value of (DDE + DDD)/DDT, lower than 0.5 ratios indicated the presence of new DDT inputs in the environments of Sonargaon area. The concentrations of total DDTs in all the samples were within the permissible MRL level i.e. for human consumption recommended by FAO-IAEA-WHO. As DDT is a long persistent and bioaccumulative substance in the environment, intake of significant amount of these toxic elements with our diet is a matter of great health concern.Bangladesh J. Zool. 47(1): 137-148, 2019
机译：进行本研究以评估天然鱼类和大虾种类的有机氯农药残留（DDTS，DDD，2,4'-DDT和4,4'-DDT）的浓度（6月至9月， 2014年）来自孟加拉国索诺加州Upazila的洪泛平原。通过快速，容易，便宜，有效，坚固的和安全（Quechers）方法提取样品，通过使用H 2 SO 4清洁提取物。通过使用带电子捕获检测器（GC-ECD）的气相色谱仪进行DDTS残留物的样品的分析。控制鱼样品（培养瑞鱼）用于回收实验。发现百分比（％）回收率在70％-113％的范围内。不同鱼类和虾类头的总DDTS含量范围为jatpunti（sophore）的7.53±0.50ng / g至Bele（G.Giuris）和体内的39.20±3.76 ng / g .7.55±0.50在Chewa（P.Elongatus）的Jatpunti（P. Sophore）中的Ng / g（P. Sophore）至41.93±3.63 ng / g。虽然七种鱼的总体的总DDT和两只虾种类的含量为4.56 ng / g在Chewa（P. Elongatus）的Gurachingri（未识别）至37.15 ng / g中。在本研究中，具有（DDE + DDD）/ DDT的值的66.66％样本，低于0.5比率表明了Sonargaon区域环境中存在新的DDT输入。所有样品中总DDT的浓度在允许的MRL水平内，即粮农组织 - 世卫组织推荐的人类消费。由于DDT在环境中是一种长期持续和生物累积物质，用我们的饮食摄入大量这些有毒元素是一个非常健康的问题.Bangladesh J. Zool。 47（1）：2019年137-148

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