Integration of pool scrubbing research to enhance Source-Term calculations (IPRESCA) project – Overview and first results

•Overview of IPRESCA project work packages and key activities.•Outcomes of consolidation of experimental data on pool hydrodynamics, aerosols, and iodine including discussion on measurement technologies employed.•Lessons learned from concluded code benchmarks on lumped-parameter and computational fluid dynamic codes.•Development of a pool scrubbing codes validation matrix.•Identification of further experimental and analytical research needs.