Contributory science reveals insights into metal pollution trends across different households and environmental media
Contributory science reveals insights into metal pollution trends across different households and environmental media
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DOI：
10.1088/1748-9326/acbaad
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发表时间：
2023-02
影响因子：
6.7
通讯作者：
Matthew Dietrich;L. Wood;J. Shukle;A. Herrmann;G. Filippelli
中科院分区：
文献类型：
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作者：
Matthew Dietrich;L. Wood;J. Shukle;A. Herrmann;G. Filippelli
由于许多遗留和现代污染源，重金属在城市环境中普遍存在，并且由于与其相关的不利健康影响而必须进行量化。特别重要的是铅 (Pb)，因为没有安全的接触水平，而且它对儿童的伤害尤其大。通过与马里恩县（美国印第安纳州）地区（n = 162 户）的社区科学家合作，我们测量了土壤、油漆和灰尘中的铅和其他重金属浓度。社区科学家使用筛查套件完成采样，研究人员在实验室通过 X 射线荧光对样品进行分析，以量化重金属浓度，并向参与者报告铅的危害。结果表明，与房主相比，租房者的土壤中铅、锌 (Zn) 和铜 (Cu) 浓度的可能性明显更高 (p ≤ 0.05)，无论在家中的土壤采样位置如何。所有家庭的住房年龄与土壤中的铅和锌以及灰尘中的铅呈显着负相关。对土壤、灰尘和油漆样本的分析揭示了一些重要的关系，例如室内真空灰尘 Pb、擦拭布 Pb 和室外土壤 Pb 之间的显着正相关性。我们的集体结果表明，租赁状况是印第安纳波利斯金属污染暴露的重要决定因素，住房年龄反映了过去和现在家庭规模的灰尘和土壤中的锌和铅污染。因此，未来的环境污染工作需要检查租房者与房主的情况，以及家庭状况和居民种族/民族等其他家庭数据，对于更好地了解不仅与铅有关的环境差异，而且还与环境介质中其他重金属有关的环境差异势在必行。
Heavy metals are prevalent in urban settings due to many legacy and modern pollution sources, and are essential to quantify because of the adverse health effects associated with them. Of particular importance is lead (Pb), because there is no safe level of exposure, and it especially harms children. Through our partnership with community scientists in the Marion County (Indiana, United States) area (n = 162 households), we measured Pb and other heavy metal concentrations in soil, paint, and dust. Community scientists completed sampling with screening kits and samples were analyzed in the laboratory via x-ray fluorescence by researchers to quantify heavy metal concentrations, with Pb hazards reported back to participants. Results point to renters being significantly (p ≤ 0.05) more likely to contain higher concentrations of Pb, zinc (Zn), and copper (Cu) in their soil versus homeowners, irrespective of soil sampling location at the home. Housing age was significantly negatively correlated with Pb and Zn in soil and Pb in dust across all homes. Analysis of paired soil, dust, and paint samples revealed several important relationships such as significant positive correlations between indoor vacuum dust Pb, dust wipe Pb, and outdoor soil Pb. Our collective results point to rental status being an important determinant of metal pollution exposure in Indianapolis, with housing age being reflective of both past and present Zn and Pb pollution at the household scale in dust and soil. Thus, future environmental pollution work examining renters versus homeowners, as well as other household data such as home condition and resident race/ethnicity, is imperative for better understanding environmental disparities surrounding not just Pb, but other heavy metals in environmental media as well.