Microplastic sampling for river-to-sea monitoring: DANUBINA

Author

Celeste Chidiac

Publication Date

November 3, 2026

Keywords

microplastics

Danube River Basin

Black Sea

environmental monitoring

water sampling

particle recovery

plastic pollution

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Microplastic monitoring in the Danube basin: introduction

How can small plastic particles be collected from flowing water for analysis?

The particles need to be retained, concentrated and recovered as a sample for analysis. This sampling step connects the water being investigated with the material that researchers can examine.

Plastic litter travels along rivers towards the sea, connecting pollution sources across national borders. Within DANUBINA, Microfluidics Innovation Center (MIC) is developing a sampler to collect small plastic particles from water, supporting the project’s monitoring work in the Danube region.

DANUBINA summary of pollution monitoring, treatment trials and MIC’s work on a sampler for microplastic analysis.

Reducing plastic pollution from river to sea: the DANUBINA project

DANUBINA is a four-year Horizon Europe project coordinated by the University of Novi Sad Faculty of Sciences in Serbia. The consortium is working with public authorities, service providers and other stakeholders on a toolbox for monitoring, preventing and reducing plastic and microplastic pollution across the Danube River Basin and the Black Sea.

At least three demonstration sites in different countries are planned. The project will pilot plastic barriers, adsorption and membrane filtration at wastewater treatment plants, and plant-based treatment of agricultural runoff. The solutions will be assessed for removal efficiency, environmental impact, scalability and cost effectiveness.

Alongside this technical work, DANUBINA will examine legal and institutional gaps, support stakeholder involvement and develop business models for wider uptake. The aim is to help authorities implement solutions that can continue beyond the demonstrations and contribute to EU zero pollution objectives.

Microplastic sampling at high flow rates: our role

Within DANUBINA, MIC is developing a microplastic sampler designed to process water at a flow rate of a few litres per minute. The instrument is intended to retain and concentrate small plastic particles, then recover them for subsequent analysis.

The collected particles will be available for downstream analysis, which is a separate step from sampling. MIC’s contribution to the wider toolbox focuses on engineering the fluid-handling and collection system that supplies material for examination.

EIC-Funded-by-European-union

Funding and Support

This project has received funding from the European Union’s Horizon Europe research and innovation programme under grant agreement No. 101295872.

Funding topic: HORIZON-MISS-2025-03-OCEAN-02

Action type: Innovation Action

Start date: 1 October 2026
End date: 30 September 2030

About the author

Celeste Chidiac

Céleste Chidiac, PhD
Scientific writer and digital marketing specialist

Céleste Chidiac holds a doctorate in neuroscience and molecular biology from the University of Strasbourg. Since joining the Microfluidics Innovation Center in 2023, she has combined scientific writing with website management. Her reviews draw on published research to explain microfluidic technologies, compare experimental approaches and discuss their applications and limitations. She helps researchers understand how these methods work and assess their relevance to their own research.

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