Vulnerabilidade hídrica: acidentes com transporte rodoviário de produtos químicos perigosos em Minas Gerais: estudo de caso BR381 trecho entre Cambuí e Estiva

Abstract

The large flow on the highways of Minas Gerais of trucks containing dangerous chemicals, especially fuels, and consequently their accidents are responsible for major environmental contamination of the surrounding areas. Areas bordering highways often have bodies of water that are affected by fuel spills. The water vulnerability of stretches that may be affected by road accidents is worrying for local communities and environmental agencies. The objective of this work is to carry out a multicriteria analysis based on pre-existing data with information from areas with the highest rate of accident occurrences, associating regional hydrographic and topographic characteristics, generated from Geographic Information System - GIS tools, and thus generating a water vulnerability map. The multicriteria method adopted in this study is the Analytic Hierarchy Process (AHP). As a case study, the stretch between Cambuí - MG and Estiva - MG, of the BR381 highway, was chosen. With the generated letter, pointing out the potential watercourses with high contamination vulnerability, it is expected that they can serve as a basis for taking assertive actions during the intervention of road accident occurrences involving contamination of water resources in the region and the risk management.