Pollution

Eawag researchers are using computer algorithms to predict the toxicity of chemicals to fish. Machine learning can help set priorities for experiments and, in the longer term, enable a tremendous reduction of animal testing.

Plastic waste is now polluting all of the world's ecosystems, even those located far from civilisation. The impact of this on the food chain is still unclear. A laboratory study by the Swiss Federal Institute for Forest Snow and Landscape Research WSL published in iForest has now shown that forest trees also take up plastic particles through their roots and transport them to the above-ground tissues of the plant.

Researchers decipher how the microbial inhabitants of sewage treatment plants help eliminate intestinal parasites.

Eawag researchers have won a competition organised by Britain’s National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3R). The prize money is awarded for use in research to develop technologies to replace animal testing.

Wastewater treatment plants are ‘hotspots’ for antibiotic resistance genes and bacteria but sewer overflows exacerbate the problem by disseminating them into rivers. Researchers at Eawag suggest ways to minimise these effects.

Mining can have serious consequences for nature and the health of the population in countries of the Global South, where environmental laws are often only inconsistently implemented. In Hwange, in western Zimbabwe, people have been fighting water pollution from coal mining for years. But they were powerless against the operators – until doctoral student Désirée Ruppen launched a citizen science project in 2018.