Updated peer review of the pesticide risk assessment for the active substance terbuthylazine in light of confirmatory data submitted

terbuthylazine, peer review, confirmatory data, risk assessment, pesticide, herbicide
First published in the EFSA Journal
19 Septiembre 2019
23 Agosto 2019
Conclusion on Pesticides


The conclusions of EFSA following the peer review of the initial risk assessment carried out by the competent authority of the rapporteur Member State, the United Kingdom, for the pesticide active substance terbuthylazine are reported. The context of the peer review was that requested by the European Commission following the submission and evaluation of confirmatory data on groundwater metabolites. The conclusions were reached on the basis of the evaluation of the representative uses of terbuthylazine as a herbicide on maize and sorghum and taking into account the scientific opinion of the EFSA Panel on Plant Protection Products and their Residues (PPR) on the setting of health‐based reference values for metabolites of the active substance terbuthylazine. The reliable endpoints concluded as being appropriate for use in regulatory risk assessment, derived from the available studies and literature in the dossier peer reviewed, are presented. Concerns are identified.

European Food Safety Authority
pesticides.peerreview [at] efsa.europa.eu
EFSA Journal 2019;17(9):5817
Question Number
On request from
European Commission

Background documents