17
Apr
Research Identifies Pollution Effects on Organic Agriculture at Lower Levels
(Beyond Pesticides, April 17, 2026) A comparative analysis published in The Lancet Planetary Health highlights the pervasiveness of pesticide pollution in organic and non-organic farms in Latin America (Costa Rica) and Africa (Uganda). While pesticides were detected in nearly all participating farmers, there is a significant relationship between lower biomarker concentrations (often correlating with less contamination) in urine samples of organic farmers relative to non-organic farmers. The researchers also identified that older farmers held higher herbicide and insecticide concentrations. This research builds on the preponderance of scientific evidence and lived experiences of agricultural communities across the globe, including the U.S., which documents nontarget contamination of food systems through air, water, and soil. In this context, Beyond Pesticides continues to advocate for a transition to organic land management practices. Methodology and Results “We collected urine samples from 601 conventional and organic smallholder farmers in Zarcero County, Costa Rica, and Wakiso District, Uganda, on two occasions during the primary spraying season,†the authors write in introducing their methodology. The researchers tested urine samples of small-scale farmers in Costa Rica and Uganda for a mix of pesticides that include a fungicide, herbicide and insecticides—mancozeb (ETU), 2,4-D, glyphosate, pyrethroid metabolites (3-PBA, DCCA), diazinon (IMPy), […]
