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Biomagnetic Monitoring of Urban Pollution: The Case of Aburrá Valley, Colombia

Author

Listed:
  • Avto Goguitchaichvili

    (Laboratorio Universitario de Geofísica Ambiental, Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia 58190, Michoacán, Mexico)

  • Alexander Sánchez-Duque

    (Tecnológico Nacional de México/I.T. del Valle de Morelia, Morelia 58100, Michoácan, Mexico
    Laboratorio Universitario de Geofísica Ambiental, Centro de Investigaciones en Geografía Ambiental, Universidad Nacional Autónoma de México, Morelia 58190, Michoacán, Mexico)

  • Francisco Bautista

    (Laboratorio Universitario de Geofísica Ambiental, Centro de Investigaciones en Geografía Ambiental, Universidad Nacional Autónoma de México, Morelia 58190, Michoacán, Mexico)

  • Rubén Cejudo

    (Laboratorio Universitario de Geofísica Ambiental, Instituto de Geofísica, Universidad Nacional Autónoma de México, Morelia 58190, Michoacán, Mexico)

  • Miguel Cervantes

    (Escuela Nacional de Estudios Superiores Unidad Morelia, Universidad Nacional Autónoma de México, Morelia 58190, Michoacán, Mexico)

Abstract

This study aims to identify the most polluted areas and sites using the magnetic signal of ornamental plant leaves as an indicator of environmental pollution. Systematic sampling was conducted with 98 sampling sites described according to urban land use, such as road hierarchy and road surface, soil group, collected plant species, and municipality. The magnetic parameters analyzed were low- and high-frequency magnetic susceptibility and the isothermal remanent magnetization acquisition curves in order to calculate the magnetic enhancement factor. For the analysis of variance, a Kruskal–Wallis test was performed to compare urban land uses. Subsequently, the magnetic enhancement factor in dust and surface soil was used to prepare maps of environmental pollution for each urban area. Analyses of the different magnetic parameters of the dust deposited on leaves show that low-coercivity ferrimagnetic minerals dominated the magnetic signal, probably magnetite of anthropic origin, and were closely linked to vehicular traffic and, to a lesser extent, industrial activities.

Suggested Citation

  • Avto Goguitchaichvili & Alexander Sánchez-Duque & Francisco Bautista & Rubén Cejudo & Miguel Cervantes, 2024. "Biomagnetic Monitoring of Urban Pollution: The Case of Aburrá Valley, Colombia," Land, MDPI, vol. 13(11), pages 1-19, November.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:11:p:1864-:d:1516473
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