The objective of this file is to finance the 2024 programming of the CPER 2021-2027 ECRIN project. The ECRIN project is a research project aiming, in the context of climate change, (1) to better characterize the physico-chemistry of urban, peri-urban and rural environments, (2) to assess its impact on human health and ecosystem services, (3) to propose mitigation and adaptation measures appropriate to each of these societal contexts and (4) to exploit these efforts to strengthen links with regional companies through innovation transfers, while supporting local stakeholders. The project is based on four thematic workshops (AT) including regional platforms for in-situ observation and laboratory exploration as well as on technical platforms in the following areas: AT1: Observation of environments, understanding of AT2 processes: Acquisition and analysis of AT3 data: Materials and processes for environmental remediation AT4: Evaluation of toxic and ecotoxic effects The objective of this operation is, on the one hand, to strengthen the instrumentation of thematic workshops through the acquisition of scientific equipment and, on the other hand, to contribute to the financing of 4 new public-private partnership research projects selected on 20 March 2024 at the end of the 2nd PPP PAA, while developing WP activities via HR recruitment.