Rômulo Penna Scorza Júnior

TL;DR: The flux concentrations in drain water proved to be a more sensitive detector of preferential flow than the resident concentrations in the soil profile and the ground water.

TL;DR: The chromatographic PEARL model was tested against the results of a field leaching study on a cracking clay soil with a tracer (bromide), a mobile pesticide (bentazone) and a moderately sorbing, persistent pesticide (imidacloprid) and it was indicated that the convection-dispersion equation cannot be used for accurate simulation of pesticide transport in cracking clay soils.

TL;DR: MACRO can give reasonably good simulations of pesticide concentrations in water draining from cracking clay soils, but that prior calibration against hydrologic and tracer data is desirable to reduce uncertainty and improve accuracy.

TL;DR: The concentration of insecticide residues detected in the water samples was below the limits set by the World Health Organization (WHO) and also by the European Union (EU), with the exception of the concentration of endosulphan sulphate at the Aného site, which was 0.116 μg L−1.

TL;DR: In this paper, the authors evaluated sulfentrazone degradation in two soils (distroferric red Latossol and orthic quartzarenic Neosol) used for sugarcane production in Mato Grosso do Sul State and also evaluated the influence of temperature, moisture and soil depth in the degradation rates.