First Steps to understanding Intrinsic Vulnerability to Contamination of Karst Aquifers in Various South American and Caribbean Countries

Authors

  • Rogério Tadeu de Souza Pontifícia Universidade Católica de Minas Gerais, Departamento de Geografia, Programa de Pós-graduação em Geografia – Tratamento da Informação Espacial
  • Luiz Eduardo Panisset Travassos Pontifícia Universidade Católica de Minas Gerais, Departamento de Geografia, Programa de Pós-graduação em Geografia – Tratamento da Informação Espacial
  • Olga Susana Heredia Departamento de Recursos Naturales y Medio Ambiente, Universidad de Buenos Aires
  • Mariana Alicia Paparas Grupo Espeleológico Argentino (GEA)
  • Silvia Alejandra Sicilia Grupo Espeleológico Argentino (GEA)
  • Franco Urbani Patat Universidad Central de Venezuela, Departamento de Geología
  • Rosa María Valcarce Ortega Universidad Tecnológica de la Habana “José Antonio Echeverría” - CUJAE, Facultad de Ingeniería Civil
  • Moraima Fernández Rodríguez Universidad de Moa, Facultad de Minería Geología, Avenida Calixto García Iñiguez
  • Liane Gamboa Corrales Sistema de Información Ambiental Regional - SIAR – CORPOCALDAS, Subdirección de Planificación Ambiental
  • Nathalia Vanessa Uasapud Enríquez Universidad Nacional de Colombia, Facultad de Minas
  • Yameli G. Aguilar Duarte Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
  • Francisco Bautista Centro de Investigaciones en Geografía Ambiental, Universidad Nacional Autónoma de México

DOI:

https://doi.org/10.3986/ac.v52i1.10516

Keywords:

South America, Carribean, intrinsic vulnerability, groundwater, carbonate rocks

Abstract

Protecting groundwater in karst aquifers is extremely impor­tant. Vulnerability maps can greatly help proper decision mak­ing based on physical environmental attributes that influence how easily a contaminant applied to the land surface can reach groundwater due to anthropogenic activities, and the proper­ties of the contaminants. Methods for determining vulnerabil­ity based on the COST Action 620 Approach, when applied in the study area, may lead to contradictory results. The main purpose of this study is to provide an overview of academic research on intrinsic karst aquifer vulnerability methodologies applied in South American and Caribbean countries. Secondly, it describes studies related to karst aquifers that, in some cases, lack specific information on intrinsic vulnerability. The objec­tive is to encourage and to help develop specific methods for determining karst vulnerability in these regions. To achieve these purposes, a systematic literature review was conducted including studies conducted at institutions such as universities, national water institutes, and by geological services. Several methods have been used in the region such as COP, DRAS­TIC, RISK, EPIK, PI, PaPRIka, and the Slovene Approach. And some attempts have been made to develop a specific methodol­ogy that best suits the specificities of the region’s karst aqui­fers. South America and the Caribbean have almost 5 % of the world´s carbonate rocks. Some countries have large extensions of their territory covered by karst rocks, such as Peru, 15.4 %; Cuba, 67 %; and Mexico 25.29 %. Estimates indicate that more than 10 million people use water from karst systems in Mexico. In Cuba, 33 % of all available water volume originates from groundwater, and 91.51 % from karst aquifers. In Mexico, 13 studies have been conducted on the importance of karst aqui­fers, which mostly address the Yucatan Peninsula, followed by Brazil (9 studies), Cuba (5), Colombia (1) and Peru (1). Infor­mation about the theme is scarce in most of the other countries in the region. Some studies have incongruent results given the regional characteristics of tropical karst.

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2023-09-18

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Souza, R. T. de, Travassos, L. E. P., Heredia, O. S. ., Paparas, M. A., Sicilia, S. A., Patat, F. U., Ortega, R. M. V., Rodríguez, M. F. ., Corrales, L. G., Enríquez, N. V. U., Duarte, Y. G. A. ., & Bautista, F. (2023). First Steps to understanding Intrinsic Vulnerability to Contamination of Karst Aquifers in Various South American and Caribbean Countries. Acta Carsologica, 52(1). https://doi.org/10.3986/ac.v52i1.10516

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