MAPPING AND IDENTIFICATION OF IRREGULAR SOLID WASTE DISPOSAL SITES IN THE URBAN AREA OF CHAPADINHA, MARANHÃO

Abstract

This study aimed to map and identify sites of irregular solid waste disposal in the urban area of Chapadinha (Maranhão, Brazil), characterizing their spatial distribution and associated socio-environmental risks. A descriptive and exploratory approach was adopted, involving on-site observations, photographic records, georeferencing, and informal conversations with residents. Eleven critical points were identified, predominantly composed of household waste, plastics, organic material, and construction debris, typically deposited over exposed soil and vegetation. Investigation of the municipal open dump revealed inadequate waste management practices, including open burning, worker exposure without Personal Protective Equipment, and uncontrolled leachate formation. The findings demonstrate significant public health impacts, such as vectores proliferation, environmental contamination, and greenhouse gas emissions. The study offers evidence to support environmental management policies and environmental education initiatives in the municipality.

DOI: https://doi.org/10.56238/sevened2026.008-073