Establishing interrelations between saturated and unsaturated zone premises for studying hazards near municipal landfills. Case study

Abstract

Non-compliant landfills present on intervals of time after the closure period pollutants emissions that affect the environmental quality. It is, therefore, imperative to identify and study the hazards induced by the emissions of the pollutants into the environment, representing an important step in the environmental risk assessment. For a landfill site chosen as a case study, located in Bucharest, were conducted in situ and laboratory investigations which consisted of: drilling a number of 6 wells for groundwater quality control, located in downstream, reported to the direction of the groundwater flow; sampling and characterization of the 24 soil samples from the unsaturated zone and samples of the groundwater from the wells. a small stream that drains the area to the south to the river Dambovita was also qualitatively analysed. the quality indicators analysed were considered representative of the activities carried out in the area of the landfill site, and the results were correlated with lithologic elements identified in location. The results presented in this article led to important conclusions: highlighting the hydraulic connections between surface and underground water, where there are permanent exchanges, the pollutants emitted by the landfill are accumulated mainly on this level.