Increase quality and quantity of green and blue infrastructures

Amplification of the self-purification capacity of a small urban river using a natural solution to reduce the effect of urban stormwater degradation on its ecological status (France)

Porous ramp operating at medium flow with  sand accumulation upstream

Ecohydrological engineering is used here to enhance the self-purification capacity of a small stream polluted by urban rainfall discharges. The demonstration site, realized in collaboration with the stakeholders, shows the positive effect on the chemical quality of the stream


Triple infiltration basin and greenery regeneration in the square of Oblęgorska / Widok Street in Łódź (Poland)

The final look of the ATENAS square. 

An implementation focused on combining blue and green infrastructure, with predominant use of native species and minimizing maintenance effort.

Key aims:

  • demonstrate the integration of blue solutions into green design;
  • create a pilot implementation of the infiltration basin as an example of best practice and a source of know-how;
  • build the trust in NbS;
  • initiate the restoration of water cycle in the Łódka River catchment.

    To Ally Technology, Nature and Society for integrated urban water management: ATENAS

    ATENAS project logo

    AteNas is built around  3 demonstration sites, covering urban and periurban zones of Łódź, Lyon and Vantaa/Helsinki and sharing the challenge of enabling water to citizens and nature, both in terms of quality and quantity.

    Utilize of cities water resources to secure regulating ecosystem services, enable Nature-Based Solutions, and enhance adaptive capacity to global changes.







    UNaLab - Urban street greening, Eindhoven, the Netherlands

    UNaLan Urban greening

    Several streets around the Eindhoven city centre (Waagstraat, Bilderdijklaan, Willemstraat, H. Boexstraat and Dommelstraat) have been rehabilitated and nature-based solutions such as bioswales and street trees have been introduced to address existing problems with heat stress and flooding, and to enhance biodiversity and attractiveness for pedestrians and cyclists.



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