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Transfer of persistent organic pollutants in food of animal origin – meta-analysis of published data
Chemosphere ( IF 8.8 ) Pub Date : 2020-09-16 , DOI: 10.1016/j.chemosphere.2020.128351
Farida Amutova , Matthieu Delannoy , Almagul Baubekova , Gaukhar Konuspayeva , Stefan Jurjanz

The transfer of POPs in food of animal origin has been studied by a meta-analysis of 28 peer-reviewed articles using transfer rate (TR) for milk and eggs and bioconcentration factors (BCF) for eligible tissues after establishing an adapted methodology. TRs of the most toxic PCDD/Fs into milk were generally elevated and even higher into eggs. BCFs in excreting adult animals varied widely between studies complicating to hierarchize tissues or congeners, even if liver and fat seemed to bioconcentrate more than lean tissues. Short time studies have clearly shown low BCFs contrarily to field studies showing the highest BCFs. The BCFs of PCDD/Fs in growing animals were higher in liver than in fat or muscle. In contrast to easily bioconcentrating hexachlorinated congeners, octa- and heptachlorinated congeners barely bioconcentrate. PCB transfer into milk and eggs was systematically high for very lipophilic congeners. Highly ortho-chlorinated PCBs were transferred >50% into milk and eggs and even >70% for congeners 123 and 167 into eggs. BCFs of the most toxic PCBs 126 and 169 were significantly higher than for less toxic congeners. BCFs seem generally low in PBDEs except congeners 47, 153 and 154. DDT and its metabolites showed high bioconcentration. Differences between tissues appeared but were masked by a study effect. In addition to some methodologic recommendations, this analysis showed the high transfer of POPs into eggs, milk and liver when animals were exposed justifying a strong monitoring in areas with POP exposure.



中文翻译:

动物源性食品中持久性有机污染物的转移-已发表数据的荟萃分析

建立一种适应性方法后,通过对28份同行评审文章的荟萃分析,对牛奶和鸡蛋的转移率(TR)和合格组织的生物浓缩因子(BCF)进行了荟萃分析,研究了动物食品中POPs的转移。通常,毒性最高的PCDD / Fs进入牛奶的TRs升高,甚至进入鸡蛋时更高。在研究之间,即使肝脏和脂肪似乎比精瘦的组织更富集,在排出的成年动物中,BCF的差异也很大,从而使组织或同类组织变得复杂。短时研究清楚地表明低的BCF与实地研究显示的最高BCF相反。生长中动物的PCDD / Fs的BCF在肝脏中高于脂肪或肌肉。与易于生物浓缩的六氯同类物相比,八氯和七氯同类物几乎没有生物浓缩。对于非常亲脂的同类物,PCB转移到牛奶和鸡蛋中的系统性很高。高度将邻氯多氯联苯> 50%转移到牛奶和鸡蛋中,对于同类123和167> 70%甚至转移到鸡蛋中。毒性最高的多氯联苯126和169的BCF明显高于毒性较低的同类物的BCF。除了同源物47、153和154外,PBDEs中的BCF似乎普遍较低。滴滴涕及其代谢产物具有较高的生物浓度。组织之间的差异出现了,但被研究效果掩盖了。除了一些方法上的建议外,该分析还表明,当动物被暴露时,持久性有机污染物会大量转移到蛋,牛奶和肝脏中,这证明了对持久性有机污染物暴露区域进行强有力的监测是有道理的。

更新日期:2020-09-16
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