2025-02-062025-02-062023-12-18https://repositorio.ifal.edu.br/handle/123456789/847It is understood that solid waste management is considered a global issue, as without adequate management, it becomes a threat to public health and the environment. Population growth associated with consumerism increases the production of solid waste, which is sometimes led to irregular disposal. The National Solid Waste Policy, through law 12,305/2010, established the closure of landfills in Brazilian municipalities, with deactivation associated with compliance with control and monitoring of the degraded area. From this perspective, the work in question aimed to carry out an environmental analysis of the area occupied by the old landfill in the municipality of Palmeira dos Índios – Alagoas. To this end, visits were made to the old landfill, historical data survey of the area, analysis of the current scenario, identification of measures adopted for control and monitoring, characterization of the physical environment using the checklist method and analysis of physical-chemical parameters of the soil and surface waters. The analysis of the area showed that nonconformities are still found, presenting environmental degradation and, consequently, risks to public health, with the presence of superficially exposed waste, erosion on the slope with outcrops of waste, in addition to contamination by surface runoff. In the results of the physical-chemical analysis of the soil, the heavy metals cadmium, copper, lead, zinc, manganese and iron were detected, in addition to checking the slightly basic pH and organic matter. In line with CONAMA resolution no. 420/2009, the metals cadmium, copper, lead and zinc are below the values guided by national legislation. The iron concentrations found are indicative of mature MSW. The high pH values are consistent with areas that had greater contact with the percolate. The analysis of aromatic hydrocarbons in the soil revealed concentrations below what is recommended by legislation. In the investigation of surface water, higher concentrations of nitrate, electrical conductivity, total phosphorus, thermotolerant coliforms and total dissolved solids were identified, which denotes negative impacts on the area. In this location, there is a great possibility of leachate infiltration, which poses risks to the community, due to exposure to the open air, which leads to contamination of water in local sources. The process of environmental recovery of the former illegally disposed area is currently stagnant, not showing any active improvements.ptMonitoramento ambientalResíduosResíduos sólidosDissertaçãoENGENHARIAS