Overview
- The study aggregates roughly 30 million ARS laboratory analyses conducted from January 2023 to June 2025.
- ARS detection of additional pesticide breakdown products is cited as the main driver of the rise in non‑conforming networks.
- INSEE data indicate the average price per cubic meter has increased about 16% over the past 30 months.
- Mid‑sized cities including Reims, Beauvais, Caen, La Rochelle and Calais are now recording pesticide exceedances.
- Conventional treatment is ineffective against many new metabolites and PFAS, with systematic PFAS monitoring due on January 1, 2026, and the group calling for tougher pesticide approvals, protected catchments and targeted aid for small communes funded by higher diffuse‑pollution levies.