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Single K. oxytoca cells. This images, generated using a NanoSIMS, shows the enrichment of the cells with heavy nitrogen (15N) after being fed with it. (Copyright: Frank Schreiber)
May 9, 2016

No two bacteria are identical – even when they are genetically the same. A new study reveals the conditions under which bacteria become individualists and how they help their colony grow when times get tough. Read more

Weltweit beziehen 300 Millionen Menschen ihr Wasser aus Grundwasservorräten, die stark mit Arsen oder Fluorid belastet sind.
April 28, 2016

The interactive and free available Groundwater Assessment Platform (GAP) is now online. Over 300 million people worldwide use groundwater contaminated with arsenic or fluoride as a source of drinking water. Researchers in the Department of Water Resources & Drinking Water have developed a method whereby the risk of contamination in a given area can be estimated using geological, topographical and other environmental data without having to test samples from every single groundwater resource. Read more

© Eawag (Photo: Jürg Siegrist)
April 13, 2016

The pipe material used for shower hoses or tap connections influences the type and amount of bacterial growth. This was shown by an Eawag study in which the microbiological impact of six commonly used plastic pipe materials was compared in a shower simulator over an eight-month period. Read more

Experimental set-up with the bacterium Caulobacter crescentus in microfluidic chips: each chip comprises eight channels, with a bacterial population growing in each channel (Graphic: Stephanie Stutz)
March 7, 2016

Individual bacterial cells have short memories. But groups of bacteria can develop a collective memory that can increase their tolerance to stress. This has been demonstrated experimentally for the first time in a study by Eawag and ETH Zurich scientists published in PNAS. Read more

Volcanic eruption. Source: Pixabay.com
November 24, 2015

According to a new international study – in which Eawag scientists played a leading role – the global climate shifted to a warmer state in the late 1980s. The research also indicates that the cooling initially caused by the eruption of El Chichón was followed by a rapid rebound in global temperatures. Read more

The colouring and patterning of trout in the Rhine catchment area (Salmo trutta) demonstrate the wide variety that exists within this species. Fiber aims to inspire enthusiasm amongst fishermen and women for native fish (photos: Fiber).
October 12, 2015

Since it was founded in 2004, the Swiss Fisheries Advisory Service, Fiber, has established itself as an important interface between research and practice. Fiber is jointly funded by the Swiss Federal Office for the Environment and the Swiss Federal Institute of Aquatic Science and Technology (Eawag). Read more

Shown here is one of the whales from which the main samples were taken. Photographed by Pascale Eisenmann, Griffith University. (Photo: © Pascale Eisenmann, Griffith University)
September 30, 2015

In collaboration with Griffith University in Australia, an Eawag research group has succeeded in developing humpback whale cell cultures in the laboratory. Read more

Ozone diffusors in Ara Neugut (© Eawag)
September 3, 2015

The new water protection law takes effect on 1 January 2016. Today in Lausanne, around 200 experts from political, administrative, business and scientific spheres met for the annual Eawag Info day, exchanging information and viewpoints on the current challenges in implementing the law, and sharing the latest research results. Read more

Microplastics are plastic particles less than five millimetres in diameter. (Photo: Jonas Martin, Geomar)
September 2, 2015

Microplastics – plastic particles less than five millimetres in diameter – can be found in oceans, lakes and rivers worldwide. It has been estimated that over 21,000 tonnes of microplastics are floating in the world’s seas. Read more

Rainbow trout gill cells were live-stained using molecular probes for nuclei (blue), cell membrane (green), mitochondria (red) and lysosome (magenta). These cells were healthy control cells unexposed to chemical stimuli. © Photo: Vivian Lu Tan, Eawag
August 7, 2015

Before new chemicals can be approved, environmental risk assessments have to be carried out. But conventional toxicity testing with live fish is costly and time-consuming, and new substances continue to be produced without being adequately assessed.  Read more