One hundred and eight abstracts were submitted for presentation at the 2023 EADPH annual congress. A number were subsequently withdrawn and the authors of abstracts 166 and 167 did not appear on the afternoon of Friday, 15 September, when their abstracts were due to be presented. The 97 abstracts which were presented on 15 September appear in the following pages. At the top of each abstract an asterisk appears by the name of the presenter.