The research evaluated pesticide retention in soil–water systems using soils collected from a banana-growing area in Cajati, São Paulo. The trials were conducted under controlled laboratory conditions.
What was compared
Soil samples received a pesticide solution and were evaluated with and without the addition of AgroCarbon®. After contact, the aqueous phase was separated by centrifugation and filtration and analyzed by LC-MS/MS.
Four highlighted compounds
In the comparison of soil A2 after eight hours, using 0.10 g of product for 2.0 g of soil, concentrations with AgroCarbon were below the detection limit. The calculated minimum reductions in the aqueous phase exceeded 96.2% for hexazinone, 94.7% for imidacloprid, 89.5% for diuron and 87.3% for indaziflam.
How to interpret the evidence
The percentages are derived from 100 × (1 − LOD / concentration without product), rounded down. They do not represent measured concentrations of zero. The study provides experimental evidence of retention from the aqueous phase, not proof of contaminant destruction or removal of the total contaminant mass from the soil.
The study design and scale limit extrapolation to the field. Food residues, root uptake, productivity and agricultural application rates require their own validation protocols.
Source: MOREIRA, Isadora Kitahara. AgroCARBON® como adsorvente para pesticidas em solo contaminado: avaliação experimental da eficiência de adsorção [AgroCARBON® as an adsorbent for pesticides in contaminated soil: experimental evaluation of adsorption efficiency]. Master’s thesis, UTFPR, 2026, 95 pp. Tables 4–7.
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