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首页> 外文期刊>Science of the total environment >Implications for wildlife and humans of dietary exposure to lead from fragments of lead rifle bullets in deer shot in the UK
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Implications for wildlife and humans of dietary exposure to lead from fragments of lead rifle bullets in deer shot in the UK

机译:英国鹿射击中步枪子弹碎片对野生生物和人类饮食中铅的影响

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摘要

Lead poisoning caused by ingested spent lead shotgun pellets has long been known to be a cause of unnecessary mortality in waterfowl and has led to legislation limiting its use in many countries. Recent evidence has shown that the problem extends to terrestrial ecosystems and to fragmented rifle bullets eaten by scavengers as well as shotgun pellets. Dietary exposure of human consumers to lead from spent ammunition in game meat also poses potential risks to human health. To assess the degree of fragmentation of lead bullets used to kill wild deer, twelve deer were shot in the thorax using copper-jacketed lead-cored bullets, as part of planned deer management operations. The thoracic region of the eviscerated carcasses and the abdominal viscera of each deer were X-rayed. An average of 356 metal fragments was visible on radiographs of the carcass and 180 fragments in the viscera. The weight of fragments was estimated by reference to an X-rayed scale of fragments of known weight. The average total weight of metal fragments, likely to be mostly lead, was estimated to be 1.2 g for the carcass and 0.2 g for the viscera. The total estimated weight of fragments in the entire carcass was estimated to be 17% of the weight of the bullet Most fragments were small in size, with those in the viscera being smaller than those in the carcass. Metal fragments in the viscera were sufficiently small that at least 80% of the metallic bullet-derived lead in the viscera would be expected to be ingested by scavenging birds, such as buzzards and eagles, which feed on them.
机译:长期以来,由摄入废弃的铅shot弹药丸引起的铅中毒是导致水禽不必要的死亡的原因,并导致立法限制了其在许多国家的使用。最近的证据表明,问题已扩展到陆地生态系统,并被清除剂和散弹枪所吞噬的步枪子弹支离破碎。人类消费者从野味中消耗掉的弹药导致的饮食暴露也对人类健康构成潜在风险。为了评估用于杀死野鹿的铅子弹的破碎程度,作为计划的鹿管理行动的一部分,用铜套的铅芯子弹在胸腔内射杀了十二头鹿。对每只鹿的内脏car体的胸腔区域和腹部内脏进行X射线检查。在radio体射线照相上平均可见356个金属碎片,在内脏中可见180个金属碎片。参照已知重量的碎片的X射线规模估算碎片的重量。估计金属碎片的平均总重量(可能主要是铅)对于the体而言为1.2 g,对于内脏而言为0.2 g。估计整个car体中碎片的总重量约为子弹重量的17%。大多数碎片尺寸较小,内脏的碎片小于the体的碎片。内脏中的金属碎片足够小,以至于内脏中至少80%的金属子弹衍生的铅将被捕食以肉食为食的鸟类(如肉食和老鹰)摄入。

著录项

  • 来源
    《Science of the total environment》 |2010年第1期|p.95-99|共5页
  • 作者单位

    Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire SG19 2DL, UK;

    Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire SG19 2DL, UK;

    Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire SG19 2DL, UK;

    Royal Society for the Protection of Birds, The Lodge, Sandy, Bedfordshire SG19 2DL, UK,Conservation Science Croup, Department of Zoology, University of Cambridge,Downing Street, Cambridge CB2 3EJ, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    lead; ammunition; secondary poisoning; scavengers; human health;

    机译:铅;弹药;二次中毒;清道夫;人类健康;

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