A pesticide currently approved for use across the European Union has been linked to potential effects on brain development, according to new research. The finding has alarmed scientists and public health advocates who say the chemical may pose risks that were not fully understood when it was authorized.
The chemical at the center of the study
The pesticide in question is a fungicide called flusilazole, which is used on crops including cereals, fruits, and vegetables. Researchers at the University of Southern Denmark and the University of Copenhagen conducted laboratory experiments on human stem cells and zebrafish embryos. They found that flusilazole interfered with the development of neural cells, particularly those involved in forming the brain and central nervous system. The study was published in the journal Environmental Health Perspectives.
Why this matters to people across Europe
Flusilazole has been approved for agricultural use in the EU since the 1990s. It is applied to fields in countries including France, Germany, Italy, and Spain. Farmers rely on it to control fungal diseases, but the new findings suggest that even at low levels of exposure, the chemical may disrupt how brain cells grow and connect. The researchers noted that the effects were seen at concentrations that could be relevant to human exposure through food and water. Local environmental groups in several EU member states have called for a review of the pesticide's approval, pointing to the precautionary principle that guides EU chemical regulation.
What happens next
The European Food Safety Authority (EFSA) is now expected to re-evaluate flusilazole in light of the new evidence. The study's authors emphasized that their results do not prove that the pesticide causes brain damage in humans, but they do raise enough concern to warrant further investigation. The European Commission has the authority to suspend or revoke the pesticide's approval if new risks emerge. For now, flusilazole remains on the market, but the debate over its safety is far from settled.
