MAPPING OUT REFUSE DUMPS AND ITS ENVIRONMENTAL EFFECTS IN ABA, ABIA STATE

ABSTRACT Improper waste disposal has become a growing environmental concern in Aba, Abia State, due to rapid urbanization and poor waste management infrastructure. This project aims to identify and map major refuse dumpsites within the city and assess their environmental impacts, particularly on soil, water, air quality, and public health. Using GPS and GIS technology, key dumpsites were located and spatially analyzed to determine their proximity to residential areas, markets, roads, and water bodies. Soil and water samples were collected around selected dumpsites and tested for physical, chemical, and biological contaminants, including pH, heavy metals (such as lead, cadmium, and zinc), and microbial presence. Findings reveal that most dumpsites are unregulated and located close to densely populated areas. Soil and groundwater around these sites showed elevated levels of pollutants above WHO safe limits, posing risks to agriculture, potable water supply, and human health. High microbial loads, including harmful pathogens, were also detected, suggesting a link to increased disease incidence among nearby residents. This project highlights the urgent need for improved waste management systems in Aba. It recommends the establishment of sanitary landfills, environmental monitoring, public awareness campaigns, and the use of phytoremediation techniques to rehabilitate affected areas.