Pesticide Exposure Linked to Cancer Risk in Peru

A new scientific study published in Nature Health reveals a strong link between environmental exposure to agricultural pesticides and an increased risk of developing cancer. Researchers from the French National Research Institute for Sustainable Development (IRD), Pasteur Institute, University of Toulouse, and the Peru===National Institute of Neoplastic Diseases (INEN) in Peru used an innovative approach combining environmental data, a nationwide cancer registry, and biological analyses. The study, conducted in Peru, found that populations in areas with high pesticide exposure had a 150% higher risk of cancer. It also identified early biological changes caused by pesticides that precede cancer development, challenging conventional toxicological approaches that focus on isolated substances. The findings highlight the importance of considering pesticide mixtures and real-world socio-ecological contexts, particularly for vulnerable communities in Peru. The World Health Organization's (WHO) current classifications of carcinogens are implicitly challenged, as the study linked cancer risk to chemicals not currently classified as known human carcinogens by the WHO. The researchers plan to continue their work to understand biological mechanisms and strengthen prevention tools.