Human health implications from consuming eggs produced near a derelict metalliferous mine: a case study
Human health implications from consuming eggs produced near a derelict metalliferous mine: a case study
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DOI：
10.1080/19440049.2022.2062059
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Andrea Sartorius;Matthew F. Johnson;S. Young;Malcolm Bennett;K. Baiker;P. Edwards;L. Yon
中科院分区：
文献类型：
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作者：
Andrea Sartorius;Matthew F. Johnson;S. Young;Malcolm Bennett;K. Baiker;P. Edwards;L. Yon
金属矿山铅污染在矿山关闭后很长一段时间内仍会对环境和健康产生重大影响。生活在废弃矿场附近的动物可能无意中摄入铅污染的土壤，导致它们积累铅，并可能对健康产生重大不利影响。在含金属矿山附近生产的人类食品，如鸡蛋，也可能受到铅污染。本案例研究的重点是确定生活在废弃铅矿附近的散养鸡是否有高铅体负荷，它们是否生产铅浓度升高的鸡蛋，以及这些鸡蛋是否可能对人类健康有害。土壤样本、鸡蛋、羽毛、血液和骨头样本是从一个废弃金属矿附近的一个小农场收集的。鸡舍内及周围土壤的铅浓度高于已建立的土壤铅基线浓度。鸡毛、血液和骨骼样本中的铅浓度与铅毒性一致，表明长期持续接触。最后，鸡蛋中的铅浓度明显高于商品鸡蛋中的铅浓度。根据先前确定的铅基准剂量水平，人类，特别是儿童，如果经常食用这些鸡蛋，可能会对健康产生不利影响。环境铅污染继续对人类构成重大健康风险，需要进一步的研究、了解和认识，以保护公众免受食用废弃矿山附近生产的食品的风险。
Abstract Lead pollution from metalliferous mines can have major environmental and health effects long after the mines have closed. Animals living near derelict mine sites can inadvertently ingest lead-contaminated soils, causing them to accumulate lead and potentially experience significant adverse health effects. Human food products, such as eggs, produced near metalliferous mines may also be contaminated with lead. The focus of this case study was to determine whether free-range chickens living near a derelict lead mine had high lead body burdens, whether they were producing eggs with elevated lead concentrations, and whether these eggs could be hazardous to human health. Soil samples and chicken egg, feather, blood, and bone samples were collected from a small farm near an abandoned metalliferous mine. The soil in and around the chicken pens contained lead concentrations that were elevated above established soil lead baseline concentrations. The lead concentrations in the chicken feather, blood, and bone samples were consistent with lead toxicity and indicated long-term, continuous exposure. Finally, the lead concentrations in the eggs were significantly greater than those found in commercial eggs. Based on previously established lead benchmark dose levels, humans, and in particular, children, could experience adverse health impacts if they routinely consumed these eggs. Environmental lead contamination continues to pose a major health risk for humans, and further research, understanding, and awareness are required to safeguard the public from the risks of consuming food produced near derelict mines.