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Short Report: Addressing Community Air Traffic Concerns: A Pilot Study on Metals and Other Elements in Soil

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Abstract

Background

A community residing along a flight path to Boston International Airport raised concerns about increased air traffic leading to increased soil pollutant deposition. These depositions may contain metals that are harmful to human health such as Pb, Zn, Cu, Fe, and Ni.

Objective

To conduct a pedagogical pilot exposure assessment study of measuring elements in soil across areas of Milton, MA with varying air traffic on approach to Boston International Airport.

Methods

As part of a Boston University School of Public Health graduate class in collaboration with a community organization, soil samples were collected from 17 different locations within and outside of the located flight path and analyzed for a suite of 30 elements using X-ray fluorescence spectroscopy. To evaluate the relationship between flight path and soil concentrations, samples were denoted as either within the flight path or outside the flight path. Differences between element concentrations within and outside the flight path were determined using Wilcoxon Rank Sum tests and correlations were compared using spearman correlations.

Results

Median soil metal concentrations of selected metals most associated with air traffic within vs. outside flight path were respectively: Pb: 73 (49) ppm vs. 108 (75) ppm, Zn: 45 (26) ppm vs. 38 (46) ppm, Cu: 16 (11) ppm vs. 18 (8) ppm, Fe: 12,926 (2,425) ppm vs. 11,222 (2,429) ppm.

Conclusions

Correlations between elements were higher and more positive within the flight path compared to outside the flight path which suggests a potential contribution from aircraft emission sources.

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Data availability

The data used for analysis in this manuscript may be made available upon request.

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Acknowledgements

The co-authors would like to acknowledge The Activist Lab at Boston University School of Public Health for providing funding through the Activist Bucks program. In addition, thank you to the community and to community members, and those who assisted during sampling. Finally, thank you to Boston Fair Skies for allowing us to assist them in the execution of this research project.

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Correspondence to Amanda Norton.

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Norton, A., Russell, Á., Radford, A. et al. Short Report: Addressing Community Air Traffic Concerns: A Pilot Study on Metals and Other Elements in Soil. Water Air Soil Pollut 235, 22 (2024). https://doi.org/10.1007/s11270-023-06790-y

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  • DOI: https://doi.org/10.1007/s11270-023-06790-y

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