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首页> 外文期刊>Journal of environmental science and health >Residue levels of organochlorine pesticides in cattle meat and organs slaughtered in selected towns in West Shoa Zone, Ethiopia
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Residue levels of organochlorine pesticides in cattle meat and organs slaughtered in selected towns in West Shoa Zone, Ethiopia

机译：埃塞俄比亚西绍阿地区某些城镇屠宰的牛和牲畜器官中有机氯农药的残留水平

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摘要

Residue levels of organochlorine pesticides (OCP) in a total of 90 cattle samples comprising meat, liver and kidney collected from carcasses slaughtered in six towns in West Shoa Zone, Ethiopia, (Ambo, Guder, Ginchi, Gedo, Holeta and Tikur Inchini), have been determined. The pesticides were extracted by solid phase extraction (SPE) and quantification was carried out using gas chromatography-mass spectrometry (GC-MS). A good linearity (r~2 ＞ 0.998) was found in the range 0.001-7.00 mg/kg for the samples studied. Most of the pesticides had recoveries in the range 81-99％ and values of relative standard deviation (RSD) ＜7.2％ for repeatability and reproducibility, showing good accuracy and precision of the method. The concentration level of the studied organochlorines followed the order: p, p' dichloro-diphenyl-trichloroethane (DDT) ＞ endosulfan＞o,p'-DDT ＞lindane＞dieldrin＞endrin＞aldrin＞chlorothanolin while the order of contamination in the analyzed organs was liver ＞ kidney ＞ meat. Heat treatment of the meat, kidney and liver samples (boiling for 90 min.) produced an overall reduction of 62.2％, 44.5％, 37.7％, 29％, 31％, 34.3％ and 30.8％ in lindane, o, p'-DDT, endosulfan, p, p'-DDT, chlorothanolin, aldrin, dieldrin, and endrin, respectively. Although the residual contents of the organochlorines detected in all the contaminated samples analyzed from the six cities were below the respective maximal permissible levels set by international organizations, samples from Holeta town were more contaminated and may necessitate effective monitoring as bioaccumulation of these residues may pose health problems in human beings.
机译：从在埃塞俄比亚西肖阿地区（Ambo，Guder，Ginchi，Gedo，Holeta和Tikur Inchini）六个城镇屠宰的尸体收集的总共90头牛样品（包括肉，肝和肾）中的有机氯农药（OCP）的残留水平，已经确定。通过固相萃取（SPE）萃取农药，并使用气相色谱-质谱（GC-MS）进行定量。对于所研究的样品，在0.001-7.00 mg / kg的范围内发现了良好的线性（r〜2＞ 0.998）。大多数农药的重复性和重现性在81-99％范围内，相对标准偏差（RSD）值＜7.2％，显示了该方法的良好准确性和精密度。所研究的有机氯的浓度水平依次为：p，p'二氯二苯基三氯乙烷（DDT）＞硫丹＞ o，p'-DDT＞林丹＞狄氏剂＞异狄氏剂＞艾氏剂＞氯代多啉，而被污染的顺序器官是肝脏＞肾脏＞肉。对肉，肾和肝样品进行热处理（沸腾90分钟），在林丹中，总的减少量为62.2％，44.5％，37.7％，29％，31​​％，34.3％和30.8％，o，p'-分别是DDT，硫丹，p，p'-DDT，氯代乙醇，艾氏剂，狄氏剂和异狄氏剂。尽管从六个城市分析的所有受污染样品中检测到的有机氯的残留含量均低于国际组织设定的各自最大允许水平，但来自霍尔塔镇的样品受到了更多的污染，由于这些残留物的生物累积可能对健康造成危害，因此可能需要进行有效监测人类的问题。

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