Diagnóstico da qualidade do Solo nas proximidades do lixão de Mamanguape – PB

Abstract

One of the principals environmental problems facing society since some decades ago is the uncontrolled generation of solid waste. Therefore this study aimed to analyze and evaluate the quality of the soil that suffers influence of landfill in the municipality of Mamanguape – PB, by measuring levels of heavy metals. There were field trips to obtain photographic survey of the area, as well as the collection of soil in six distinct points inside and outside the area of the landfill. Samples were taken to the laboratory, which were prepared and made readings of heavy metal (Cu, Zn, Fe, Mn, Cd, Pb e Ni). From the photographic survey, it was observed that the environment is polluted and degraded. Was detect the presence of slurry, a percolated liquid with variable composes from the action of rainwater, that crosses through the decomposing waste at the landfill and is able to infiltrate or seep through the soil until water resources. Soil samples confirmed the presence of heavy metals at levels above of value reference established by CONAMA Resolution Nº 420 (2009), however the heavy metals Cu, Cd e Pb, because of the low mobility in soil they have a low risk of soil contamination.