
What is the cluster?
The ZeroPollution4Water Cluster is an initiative that originated from the coalition of seven different projects funded from the calls for proposals HORIZON-CL6-2022-ZEROPOLLUTION-01-01 and 01-04, that revolve around two main themes: Preventing groundwater contamination and protecting its quality against harmful impacts of global and climate change and securing drinking water quality by protecting water sources against pollution, providing innovative monitoring and treatment solutions, and ensuring safe distribution.
Objectives
Focused on the European Union’s Zero Pollution ambition and the European Green Deal, the cluster aims to improve water quality, safeguard drinking water sources, and protect groundwater against the harmful impacts of global and climate change.
By leveraging the collaboration and synergies between the collaborative projects funded through Horizon Europe, the cluster aims to develop advanced preventive and mitigating strategies, effective risk assessment and management systems, and innovative monitoring and treatment solutions for drinking water and groundwater.
Expected Impacts
This effort, with the continued support of the EC services such as project advisers and policy officers of the EC REA and DGs, intends to build a critical mass of knowledge and expertise to effectively contribute with the concrete evidence-based examples from case studies and to propose recommendations on water effective management from the perspective of a wider drinking water cycle (from source to tap including drinking water networks), as well as from the zero-pollution strategy viewpoint. In this way the cluster is aiming to contribute to: (a) policy shaping and implementation, (b) identification of new R&I’s challenges, and (c) exploitation of results to achieve a Water-Smart Society.
Founding projects

ZeroPollution4Water resources
- ZP4W Cluster Inventory of 32 Case Studies – Official publication
- ZeroPollution4Water Case Study Inventory – Public Draft
- ZeroPollution4Water Cluster Joint Policy Brief #3 (27 March 2026)
- ZeroPollution4Water Cluster Joint Policy Brief #2 (29 August 2025)
- ZeroPollution4Water Joint Policy Brief #1 (31 March 2024)
- ZeroPollution4Water “Case Study: Key steps for market uptake of the THM analyser“, authored by G. Ostuni, Multisensor Systems (November 2025)
- ZeroPollution4Water Brochure “Key Steps for Market Uptake of Water Technologies for the Drinking Water Sector” (November 2025)
- ZeroPollution4Water Updated strategy
- ZeroPollution4Water ActionPlan
- ZeroPollution4Water Brochure
- ZeroPollution4Water Rollup
ZeroPollution4Water Webinars – Recordings
- 1st Webinar ZeroPollution4Water Cluster Webinar ‘All about DBP (disinfection byproducts)’ (30 November 2023)
- 2nd Webinar DBPs – Monitoring, Treatment, and Regulation (25 March 2024)
- 3rd Webinar Precursors of disinfection by-products (4 June 2024)
- 4th Webinar -Drinking Water Systems Modelling and Digitalization (3 December 2024); Agenda, presentations, shownotes & recording
- 5th Webinar – Preparing drinking water supply systems for climate change – case study insights (3 April 2025); Agenda, presentations, shownotes & recording
