Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Hazardous Solid Waste Confined in Closed Dump Sites: An Urgent Environmental Liability to Attend

Version 1 : Received: 15 January 2021 / Approved: 18 January 2021 / Online: 18 January 2021 (14:19:34 CET)

How to cite: González-Arqueros, M.; Domínguez-Vázquez, G.; Alfaro-Cuevas-Villanueva, R.; Israde-Alcántara, I.; Buenrostro-Delgado, O. Hazardous Solid Waste Confined in Closed Dump Sites: An Urgent Environmental Liability to Attend. Preprints 2021, 2021010343 (doi: 10.20944/preprints202101.0343.v1). González-Arqueros, M.; Domínguez-Vázquez, G.; Alfaro-Cuevas-Villanueva, R.; Israde-Alcántara, I.; Buenrostro-Delgado, O. Hazardous Solid Waste Confined in Closed Dump Sites: An Urgent Environmental Liability to Attend. Preprints 2021, 2021010343 (doi: 10.20944/preprints202101.0343.v1).

Abstract

The soil and water contamination by metals from hazardous waste confined with urban solid wastes, highlights the importance of enhance the monitoring of disposal sites once closed. It is common to fail to comply with the regulations on their location, operation and post-closure, and located in areas that affect the environment and the health of the population. In the closed dump of Morelia, contamination of the soil and groundwater by leachates with heavy metals in the water from supply wells has been reported. The objective of this study was to determine the presence of heavy metals and arsenic in the confined wastes of the Morelia closed dump, in order to diagnose the affectation from the contaminants. Composition, degradation status and the presence of heavy metals were analyzed in samples of confined solid wastes from eight wells with different age of confinement. The results of this study ratify the contamination of the leachates of the site and are associated with the contamination of the water for human consumption in the area. The actual regulation does not apply in the case of urban solid waste, so it is crucial to regulate monitoring and management for correct decision-making during post-closure management.

Subject Areas

Metals; Arsenic; Leachates; Pollution; Mexico

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