David M Brown
David Brown PhD is Head of Chemical Fate and Exposure at Cambridge Environmental Assessments (CEA), specialising in environmental fate, exposure assessment and regulatory environmental risk assessment for pharmaceuticals, pesticides, biocides and industrial chemicals. His expertise spans chemical persistence, biodegradation, environmental monitoring interpretation and higher-tier exposure modelling across UK and international regulatory frameworks, including EMA, REACH, PPP and Biocides.
David has extensive experience designing and applying systematic literature review approaches for environmental risk assessment, including the identification, screening and interpretation of environmental data to support robust regulatory conclusions. He has worked extensively on environmental persistence assessments, bespoke environmental fate studies and the interpretation of monitoring data to support transparent, evidence-based regulatory decision making.
David has particular expertise in addressing complex environmental and regulatory challenges, especially for difficult or data-limited substances, and in developing science-based advocacy strategies and refined environmental risk assessments grounded in practical environmental chemistry.
JournalEnvironmental risk assessment of human medicinal products in the EU: Legacy APIs, data reuse, and the governance bottleneck after the 2024 guideline revision
The 2024 revision of the EU environmental risk assessment (ERA) guideline extended requirements to all new marketing authorisation applications, including generics and hybrids. This article discusses the obstacles in pharmaceutical ERA, and the implications for regulatory efficiency, environmental protection, ethical use and the potential for improved ERA data reuse.


















