Involved in regulatory risk assessments since the 1990s, as Head of the Ecotoxicology and Environmental Risk Assessment Division at INIA, vicechair of the EU Scientific Committees CSTEE and SCHER, chair of the Risk Assessment Committee at the European Chemicals Agency (ECHA), and Head of the Pesticides Unit at the European Food Safety Authority (EFSA), among other activites; since 2022 is Research Professor and Head of the Risk Assessment Unit at the National Environmental Health Centre, Instituto de Salud Carlos III, in Spain, coordinating a project on landscape environmental risk assessment of pesticides under the EU Partnership PARC, and contributing to the next generation risk assessment methodology through the incorporation of New Approach Methodologies (NAMs) to human and ecological risk assessment.