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In areas with a lot of agriculture, nitrate concentrations in groundwater are higher. However, other factors that have been largely overlooked to date can also contribute to high nitrate concentrations. (Photo: BauernZeitung)
News
How artificial intelligence detects nitrate hotspots
December 1, 2025

Eawag researchers are using machine learning to map nitrate pollution in Swiss groundwater. This allows gaps in the measurement network to be filled and the causes of excessive values to be identified. The study is part of a larger project analysing the nitrogen cycle in Switzerland.
Walter Giger 1992
News
Environmental chemist Walter Giger has passed away
November 19, 2025

Walter Giger was a pioneer in the life cycle analysis of environmental pollutants. He analysed, but also insisted that action be taken when the harmfulness of a substance was proven. His work on toxic nonylphenols attracted worldwide attention. Walter Giger passed away on 6 November 2025. With his passing, Eawag and environmental chemistry have lost an outstanding researcher, but for many he was also a good friend.
Symbolic image. Source: Adobe Stock, generated with AI.
Publication
Current information resources on PFAS
October 23, 2025

A new website and two fact sheets provide up-to-date information on PFAS, the forever chemicals in the environment, and outline possible courses of action.
Serina Robinson receives the ERC Starting Grant (Photo: Eawag, Leonardo Biasio).
News
Serina Robinson receives ERC Starting Grant
September 5, 2025

Eawag scientist Serina Robinson receives the ERC Starting Grant. She is investigating how microbial enzymes bind PFAS.
“Groundwater – utilising and protecting the resource drinking water” is the topic of the Eawag Info Day 2025. (Graphic: grafikvonfrauschubert, Eawag)
Event
“We must preserve our drinking water resources”
September 4, 2025

Groundwater, which provides 80 percent of Switzerland's drinking water, is the focus of the Eawag Info Day taking place today in Dübendorf.
Archive News