Disposal of urban solid waste in sites without infrastructure for environmental protection may be responsible for contamination of natural resources and human beings by gas and liquid effluent emission. The proposed methodology aims to contribute in the evaluation of risk to the exposure to leachate as well as suggested procedures for site monitoring, according to different levels of care and urgency. The method is based on four matrices where it is possible to make an initial evaluation of the source of the risk, the potential target and the superficial and underground environmental paths. In this paper only the contamination caused by liquid effluents were considered.
Classification system; environmental impact; risk assessment; Leachate; risk of exposition; monitoring
