The 2019 Extra Joint FAO/WHO Meeting on Pesticide Residues (JMPR) was held in Gatineau/Ottawa, Canada from 7 to 17 May. The FAO and WHO Joint Meeting on Pesticide Residues (JMPR) is an expert ad hoc body administered jointly by FAO and WHO in the purpose of harmonizing the requirement and the risk assessment on the pesticide residues. The JMPR meets annually to evaluate possible hazards to humans arising from the occurrence of pesticide residues in foods. The Evaluation monographs of pesticide residues in food 2019-Part I (e-version only) includes summary of the residue data considered by the 2019 JMPR. The JMPR is the only scientific advisory body to service the Codex and FAO member countries in risk assessment of pesticide residues and in establishment of Codex MRL in food and feed. The JMPR report and evaluations are the unique technical publications in the review of pesticide residue data from around the world. The Report provides the evaluations of the Joint Meeting of the FAO Panel of Experts on Pesticide Residues in Food and the Environment and the WHO Core Assessment Group on Pesticide Residues. The extra Meeting evaluated 19 pesticides, including eight new compounds and three compounds that were re-evaluated for toxicity or residues, or both, within the periodic review programme of the Codex Committee on Pesticide Residues (CCPR).