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Takeaways:
- In Poznań, Poland, a project of the European Union , AquaNES, aims to integrate nature-based elements into the Warta River, the city’s main source of water.
- Mussels will be used to test the water quality because they have a low tolerance for pollutants and will clamp shut as a response to improper water quality.
- If four of the mussels close at the same time, the system will shut down automatically.