Vulnerabilidade à contaminação das águas subterrâneas no município de Humaitá, Amazonas, Brasil/Vulnerability of groundwater to contamination in the municipality of Humaitá, Amazonas

Groundwater has been used intensively throughout Brazil. In southern Amazonas state, the water supplies of some municipalities are derived exclusively from wells. Yet this region generally has no wastewater treatment, leading to potential contamination of the underground water. We classified and map...

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Bibliographic Details
Published in:Revista ambiente & água 2016-05, Vol.11 (2), p.402
Main Authors: Duarte, Miqueias Lima, Zanchi, Fabrício Berton, Neves, Juliana Rocha Duarte, Costa, Heron Salazar, Jordão, Walleson Higor Corrêa
Format: Article
Language:Portuguese
Subjects:
Aquifers
Contamination
Groundwater
Water supply
Online Access:Get full text
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Summary:Groundwater has been used intensively throughout Brazil. In southern Amazonas state, the water supplies of some municipalities are derived exclusively from wells. Yet this region generally has no wastewater treatment, leading to potential contamination of the underground water. We classified and mapped the vulnerability of groundwater supplies to contamination in the urban and peri-urban area of Humaitá in southern Amazonas State. We used the GOD method (Groundwater occurrence; Overall Lithology of the unsaturated zone; Depth of the water table) to score vulnerability classes. The results revealed the existence of average and high vulnerability of aquifer contamination in the area, indicating the fragility of the aquifer system that supplies the municipality, and showing the need for public policies aimed at the protection of the region's groundwater resources.
ISSN:1980-993X
DOI:10.4136/ambi-agua.1797