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Biomonitoring of Trace Elements in Hair of Schoolchildren Living Near a Hazardous Waste Incinerator—A 20 Years Follow-Up

机译：生活在危险废物焚化炉附近的学童头发中微量元素的生物监测— 20年的随访

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摘要

Since 1998, a monitoring program is periodically performed to assess the environmental and human health impact of air chemicals potentially emitted by a hazardous waste incinerator (HWI) located in Constantí (Catalonia, Spain). In 2017, samples of hair were collected from 94 schoolchildren (aged 10–13 years) living nearby and the levels of 11 trace elements (As, Be, Cd, Cr, Hg, Mn, Ni, Pb, Sn, Tl and V) were determined. The concentrations showed the following descending order: Pb > Hg > Ni > Sn > Mn > Cr. In turn, As, Be and Tl were not detected, while Cd and V were found only in a few samples. Some metal levels were significantly, positively correlated. Some significant differences were also noticed according to the gender and the specific zone of residence. Finally, the levels of trace elements showed fluctuations through time. Cr and Pb showed a significant decrease in comparison to the concentrations obtained in the baseline study (1998). According to the current results, metal emissions from the HWI are not relevant in terms of human health impact since their levels were similar and even lower than those reported in other contaminated areas.
机译：自1998年以来，定期执行一项监测计划，以评估位于康斯坦提（西班牙加泰罗尼亚）的危险废物焚化炉（HWI）可能排放的空气中化学物质对环境和人类健康的影响。 2017年，从居住在附近的94名小学生（年龄在10-13岁之间）和11种微量元素（As，Be，Cd，Cr，Hg，Mn，Ni，Pb，Sn，Tl和V）中采集了头发样本被确定。浓度按以下降序排列：Pb> Hg> Ni> Sn> Mn> Cr。反过来，未检测到As，Be和T1，而仅在少数样品中发现了Cd和V。一些金属水平显着正相关。根据性别和居住地的不同，还发现了一些显着差异。最后，微量元素的含量随时间变化。与基线研究（1998年）获得的浓度相比，Cr和Pb显着降低。根据当前结果，HWI产生的金属排放与人类健康影响无关，因为它们的排放水平与其他受污染地区相似，甚至更低。

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