On December 12, 2025, the Organisation for Economic Co-operation and Development published a report entitled The Identification of Exposure Metrics for Use in Evaluation of Inhalation Exposure to Nano-Objects and their Aggregates and Agglomerates (NOAA) in the Workplace. The report presents a comprehensive overview, informed by a literature review, on methods for assessing and measuring inhalation exposure to nano-objects and their aggregates and agglomerates (NOAA) in workplace environments....