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Impact of metal pollution on freshwater ecosystems submitted to extreme climate events

Project description

Protecting freshwaters from metals and climate stress

Freshwaters are at increased risk because of metal pollution and climate change. Supported by the Marie Skłodowska-Curie Actions programme, the CLIMETAL project aims to study how metals extensively used in the energy transition (e.g. lithium, nickel, cobalt, copper, rare earth elements), interact with extreme climate events (droughts and floods) regarding their availability and impact. These events influence the capacity of metals to be taken up by organisms and to become harmful to aquatic life. CLIMETAL will monitor chemical behaviour of metals, their levels and fate as well as how they affect aquatic organisms (biofilms and invertebrates). CLIMETAL will examine how extreme climate events affect metal ecotoxicity, informing on how freshwater environments may be protected against metal pollution and climate change.

Objective

Freshwaters simultaneously receive a high diversity of contaminants, metals being amongst the most toxic. The growing use of metals for energy transition (e.g. electric vehicles, wind turbines, solar panels) is exposing freshwater ecosystems to unknown threats. These also suffer from the increasing frequency and intensity of extreme climate events (i.e. droughts and floods), which may cause hydric stress, physical abrasion, lower dilution, or contaminant pulses. These overall influence metal bioavailability and expose the biota to unknown toxicological effects. CLIMETAL will address these challenges by exploring the fate of metals used in energy transition, including those with understudied toxicity (lithium, rare earth elements, etc.), as well as their separated and sequential biological effects under the hydrological alterations associated to droughts and floods. CLIMETAL will investigate the influence of these alterations on metal bioavailability, and the subsequent consequences for their bioaccumulation and ecotoxicological effects. Bioavailability of metals will be estimated by modelling their chemical speciation and by measuring their labile concentrations, giving rise to a collaboration with physical chemists (= secondment). Metal bioaccumulation as well as biological and functional effects on freshwater ecosystems will be assessed using primary producers (biofilms) and primary consumers (invertebrates). These two biological compartments are connected and provide a complementary response to the metal exposure under distinct hydrological alterations. The proposal adopts an interdisciplinary approach involving ecotoxicology, environmental chemistry, ecology and modelling and combines complementary methods from laboratory (microscosm, mesocosm) to fieldwork. Data generated in CLIMETAL will contribute to fulfill the European Green Deal, which aims to reduce the impact of climate change and environmental pollution as well as protect ecosystems.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

FUNDACIO INSTITUT CATALA DE RECERCA DE L'AIGUA
Net EU contribution
€ 209 914,56
Address
CALLE EMILI GRAHIT EDIFICI H20 101
17003 Girona
Spain
Region
Este Cataluña Girona
Activity type
Research Organisations
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Total cost
No data

Partners (1)