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A Soil Screening Study to Evaluate Soil Health for Urban Garden Applications in Hartford, CT

Author

Listed:
  • Hayley Clos

    (Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06268, USA)

  • Marisa Chrysochoou

    (Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06268, USA)

  • Nefeli Bompoti

    (Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06268, USA)

  • Jacob Isleib

    (United States Department of Agriculture Natural Resources Conservation Service, Tolland, CT 06084, USA)

Abstract

Urban agriculture is a sustainable practice for communities to have access to healthy and affordable produce by reducing the energy costs of food production and distribution. While raised beds are often used in community gardens to ensure that soil quality meets proper standards, the use of existing urban soils is desired for economic and sustainability purposes. The main objective of this study is to evaluate a methodology to test soil health parameters using in situ screening methods. Soil testing was conducted at three urban lots in Hartford, CT, that were candidates for community gardens. In situ measurements of metals were taken with a pXRF instrument in all three lots, and an additional 30 samples were tested in the laboratory, both on pressed pellets via pXRF and with acid digestion and ICP-MS analysis. Ultimately, in situ pXRF measurements were comparable to pelletized pXRF and ICP-MS measurements for elements of interest, and pXRF is shown to be a reliable screening tool to evaluate exceedances for metal regulatory thresholds exceeding 100 ppm (e.g., Pb, Cu, Ni, Zn, and Se), although soil moisture content exceeding 5% is shown to have a dilution effect on in situ results up to about a 30% difference. The current study serves as a case study in Hartford, CT, for the evaluation of in situ pXRF analysis as a rapid soil screening tool, and further research will be needed to extend the current recommendations to a general rapid soil assessment methodology.

Suggested Citation

  • Hayley Clos & Marisa Chrysochoou & Nefeli Bompoti & Jacob Isleib, 2023. "A Soil Screening Study to Evaluate Soil Health for Urban Garden Applications in Hartford, CT," Sustainability, MDPI, vol. 15(10), pages 1-15, May.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:10:p:7924-:d:1145137
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    References listed on IDEAS

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    1. Heimlich, Ralph E. & Barnard, Charles H., 1992. "Agricultural Adaptation To Urbanization: Farm Types In Northeast Metropolitan Areas," Northeastern Journal of Agricultural and Resource Economics, Northeastern Agricultural and Resource Economics Association, vol. 21(1), pages 1-11, April.
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