This quarterly bulletin presents a summary of the measurement data (water temperature and transparency, dissolved oxygen and chlorophyll a concentration) acquired as part of the Léman monitoring program, at measurement points SHL2 and GE3 (see illustration).
Communicating the health of Lake Geneva
All the work done to monitor and understand and understanding it with a view to its preservationmust be brought to the attention of all concerned scientists, elected representatives, government departments government departments, environmental protection associations environmental protection associations, fishing fishing industry, drinking water distributors and, more widelythe general public, because everyone is concerned! everyone is concerned!
Les Ateliers Lémaniques
Discover the mysteries of Lake Geneva!
We offer a range of immersive and educational workshops designed for all audiences wishing to discover Lake Geneva and its unique ecosystems.
Whether you're an environmental enthusiast, a nature lover or simply curious, our workshops give you the opportunity to dive (sometimes literally) into the fascinating world of this great alpine lake.
Boating and preserving Lake Geneva
Let's work together to protect Lake Geneva and its natural treasures!
Whether you're a swimmer or a water sports enthusiast, discover best practices for preserving Lake Geneva, as well as an interactive map listing its sensitive natural environments and points of interest such as beaches, water access points and harbors. This initiative also highlights Lake Geneva's unique ecosystems and their emblematic species.
A free travelling exhibition
The natural environment of Lake Geneva
CIPEL has just put together a beautifully illustrated exhibition to raise public awareness of the need to preserve the natural environments along Lake Geneva. Visitors are invited to discover the flora and fauna of 5 distinctive environments.
This exhibition, comprising 6 rollups, is available free of charge to enhance regional events. Simply contact the CIPEL secretariat and pick up the material on site.
A postcard-sized leaflet with the 6 illustrations from this exhibition is also available free of charge and can be ordered from the secretariat.
Beach map
A webapp dedicated to bathing water quality
To enjoy the fresh waters of Lake Geneva, discover the 120 beaches along the shores of Lake Geneva whose water quality is tested.
You'll also find useful and interesting information 💡
The 4 seasons of Lake Geneva
Water monitoring data for each season
What is the latest lake temperature data? To what extent does the lake warm up or cool down over the year? How does its oxygen content change? And how do its transparency and algae development fluctuate? 🤓 To get a better idea of how the lake works, follow its evolution through the seasons in our regular bulletins.
Limnological bulletin
Order materials
To order materials and for further information, contact the CIPEL secretariat
Discover our publications
CIPEL regularly issues publications aimed at different audiences
