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Hazardous Solid Waste Confined in Closed Dump of Morelia: An Urgent Environmental Liability to Attend in Developing Countries

Author

Listed:
  • M. Lourdes González-Arqueros

    (CONACYT, Instituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, Mexico)

  • Gabriela Domínguez-Vázquez

    (Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, Mexico)

  • Ruth Alfaro-Cuevas-Villanueva

    (Instituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, Mexico)

  • Isabel Israde-Alcántara

    (Instituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, Mexico)

  • Otoniel Buenrostro-Delgado

    (Instituto de Investigaciones en Ciencias de la Tierra, Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58000, Mexico)

Abstract

In developing countries, landfills of urban solid waste (USW) are a major source of contamination. One reason is the common practice of the illegal confinement of hazardous waste (HW). The contamination is mainly due to deficitary design location, operation and lack of liner, which enables the dispersion of pollutants. The aim of our work is to demonstrate the presence of heavy metals (HM) and arsenic (As) in USW of the closed dump of Morelia, which clandestinely confined HW for 20 years. Solid samples of USW were collected from eight opencast wells with different age of confinement. Composition, degradation status, physical-chemical characterization and analysis of HM and As were carried out. The results showed the presence of Pb, Cu, Ni, Zn, Cr, Fe and high concentrations of As. This study provides evidence about the usual and illegal practice of landfill HW together with USW; the hazard due to the presence of HM and As; the deficiency in the operation and closure; and, the lack of competent legislation on the subject. This information is essential to establish background information for improving laws and help decision makers in territorial planning to improve public and environment health.

Suggested Citation

  • M. Lourdes González-Arqueros & Gabriela Domínguez-Vázquez & Ruth Alfaro-Cuevas-Villanueva & Isabel Israde-Alcántara & Otoniel Buenrostro-Delgado, 2021. "Hazardous Solid Waste Confined in Closed Dump of Morelia: An Urgent Environmental Liability to Attend in Developing Countries," Sustainability, MDPI, vol. 13(5), pages 1-9, February.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:5:p:2557-:d:506685
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