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Análise de contaminantes de fase líquida não aquosa (NAPLs) por aplicação do método eletromagnético indutivo (EM)

The improper discarding of industrial residues in the soil has caused damages to the environment and to the human health. The identification and diagnosis of contaminated areas are necessary procedure of that it is possible to take measured by containment of the polluting source and posterior remediation. The geophysical techniques can assist the characterization of the ground subsurface, definition of the contamination plumesize, selection of sampling points and pumping wells. This work presents some results from the application of the Inductive Electromagnetic method in an industrial area contaminated by benzene, toluene, xylene (BTX) and dichloroethene. The results indicate two migrations of the patterns for the subsurface contaminants. A horizontal trend of migration extends up to 15m depth and a vertical trend of migration in the vertical plan enters 15 to 60 m depth. The divergent trends of migration are conditioned by density of the composites that constitute the plume of contamination, or either, a floating interval LNAPL (BTX), overlapped to an interval DNAPL (1,2 dichloroethene).

Inductive Electromagnetic; Contamination plume; BTX; LNAPL; DNAPL


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