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Accumulation of Contaminants by Wild Turkeys and Potential for Consumer Exposure
Environmental Toxicology and Chemistry ( IF 4.1 ) Pub Date : 2020-12-17 , DOI: 10.1002/etc.4967
Cody A Tisdale 1 , James C Leaphart 1 , James C Beasley 1 , James A Martin 1
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Despite their popularity as a game species across North America, little is known about contaminant burdens in wild turkeys (Meleagris gallopavo) inhabiting areas of environmental contamination, and their potential to expose human and wildlife consumers. We compared trace element concentrations and radionuclide activity in muscle and liver tissues of turkeys inhabiting the Savannah River Site (USA), an area with known anthropogenic contaminant inputs, with turkeys from uncontaminated areas offsite. In addition, we tested breast feathers from a subset of individuals for mercury (Hg) to assess the viability of nonlethal sampling for quantifying Hg concentrations. Finally, we quantified arsenic, Hg, and selenium (Se) in blood of live‐captured turkeys inhabiting a coal ash basin on the Savannah River Site. Compared with reference samples, we found that turkeys inhabiting the Savannah River Site contained elevated Hg levels in both muscle and liver tissues, and lower concentrations of chromium. Turkeys from the ash basin also had elevated levels of Se. We found a positive correlation between breast muscle and feather Hg concentrations (F1,59 = 267.5, R2 = 0.82, p < 0.001), suggesting that feathers can potentially be used as a nonlethal sampling technique. All elements analyzed were below reference limits set by the Centers for Disease Control and Prevention for safe consumption. Thus, our data suggest that turkeys likely are not an important pathway of contaminant exposure on the Savannah River Site or other areas with similar contaminant distributions. Environ Toxicol Chem 2021;40:1222–1231. © 2020 SETAC

中文翻译:

野生火鸡的污染物积累和消费者接触的可能性

尽管它们在北美作为一种游戏物种很受欢迎,但对野生火鸡(Meleagris gallopavo)的污染物负担知之甚少) 环境污染的居住区,以及它们暴露人类和野生动物消费者的潜力。我们比较了栖息在萨凡纳河遗址(美国)的火鸡肌肉和肝脏组织中的微量元素浓度和放射性核素活性,该地区具有已知的人为污染物输入,与来自场外未受污染地区的火鸡。此外,我们测试了一部分个体的乳房羽毛中的汞 (Hg),以评估非致命采样用于量化 Hg 浓度的可行性。最后,我们量化了居住在萨凡纳河遗址煤灰盆地的活捕获火鸡血液中的砷、汞和硒 (Se)。与参考样本相比,我们发现栖息在萨凡纳河遗址的火鸡的肌肉和肝脏组织中的汞含量均较高,而铬的含量较低。来自灰烬盆​​地的火鸡的硒含量也升高。我们发现胸肌和羽毛汞浓度呈正相关(F 1,59  = 267.5, R 2  = 0.82, p  < 0.001),表明羽毛可用作非致命采样技术。分析的所有元素均低于疾病控制和预防中心为安全消费设定的参考限值。因此,我们的数据表明,在萨凡纳河遗址或其他具有类似污染物分布的地区,火鸡可能不是污染物暴露的重要途径。环境毒理学化学2021;40:1222-1231。© 2020 SETAC
更新日期:2020-12-17
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