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首页> 外文期刊>Environmental Science & Technology >Identifying Sources of Pb Exposure in Waterbirds and Effects on Porphyrin Metabolism Using Noninvasive Fecal Sampling
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Identifying Sources of Pb Exposure in Waterbirds and Effects on Porphyrin Metabolism Using Noninvasive Fecal Sampling

机译：使用非侵入性粪便采样识别水鸟中铅的暴露源及其对卟啉代谢的影响

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摘要

Waterbirdfeces (mairiymaHardAmjsptoyrflj'ndlos and coot Fulica atra) were collected from four wetlands in Southern Spain in the field or during capture (n = 558 and n - 59, respectively) to study lead (Pb) shot ingestion. Lead and aluminum (Al) concentrations along with Pb isotope signatures were used to identify sources of Pb exposure. The profile and concentrations of porphyrins and biliverdin in feces were used as biomarkers of toxicological effects. Feces with Pb concentrations > 34 jWg/g d.w. showed higher Pb/Al ratios, together with lower ^b/^Pb and ^b/^Pb ratios, and higher **Pb/**Pb ratios, than feces with <34 He/g &w. Isotope signatures and Pb/Al ratios together indicated that Pb shot ingestion was the likely cause of the high Pb levels in some samples, whereas sediment ingestion was linked to lower/background levels. Coproporphyrin I and protoporphyrin DC were also higher in feces with Pb > 34/ig/g dw, indicating measurable disruption in heme synthesis. Noninvasive fecal sampling permits study of the degree and source of Pb exposure and physiological effects, with low-effort and minimal disturbance to waterbirds.
机译：从西班牙南部的四个湿地的田间或捕获期间（分别为n = 558和n-59）收集了水禽粪便（mairiymaHardAmjsptoyrflj'ndlos和老傻子Fulica atra）以研究铅（Pb）铅的摄入。铅和铝（Al）的浓度以及Pb同位素特征被用于识别Pb暴露的来源。粪便中卟啉和biliverdin的分布和浓度被用作毒理学作用的生物标记。铅浓度> 34 jWg / g d.w的粪便。与<34 He / g＆w的粪便相比，Pb / Al比值更高，^ b / ^ Pb和^ b / ^ Pb比值更低，** Pb / ** Pb比值更高。同位素特征和Pb / Al比率共同表明，Pb铅的摄入是某些样品中Pb含量高的可能原因，而沉积物的摄入则与较低/本底水平有关。粪中的粪卟啉I和原卟啉DC也较高，Pb> 34 / ig / g dw，表明血红素合成受到可测量的破坏。无创粪便采样允许研究Pb暴露的程度和来源以及生理效应，且工作量小且对水鸟的干扰最小。

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  • 来源
    《Environmental Science & Technology》 |2011年第14期|p.6153-6159|共7页
  • 作者

    Monica Martinez-Haro; Mark A Taggart; Rosa R.C. Martfn-Doimeadios; Andy J. Green; Rafael Mateo;

  • 作者单位

    Instituto de Investigation en Recursos Cinegedcos, IREC (CSIC-UCLM-JCCM), 13071 Ciudad Real, Spain,Department of Wetland Ecology, Estation Biologica de Doiiana (CSIC), 41092 Sevilla, Spain;

    Instituto de Investigation en Recursos Cinegedcos, IREC (CSIC-UCLM-JCCM), 13071 Ciudad Real, Spain;

    Department of Analytical Chemistry and Food Technology, Faculty of Environmental Sciences, University of Castilla-La Mancha,45071 Toledo, Spain;

    Department of Wetland Ecology, Estation Biologica de Doiiana (CSIC), 41092 Sevilla, Spain;

    Instituto de Investigation en Recursos Cinegedcos, IREC (CSIC-UCLM-JCCM), 13071 Ciudad Real, Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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