Anti-pollution teams worked to contain a gasoline spill into the lake around Quai Wilson.
The alert was sounded yesterday morning when passers-by reported smelling petrol.
Firefighting teams put up inflatable barriers to stop the fuel spreading – the contamination was estimated to spread 200 meters wide and 100 meters long.
But the pollution is only going to have a limited impact on the ecosystem, says the canton.
An investigation into the leak is now underway.
Major 5 year works plan starts in Geneva next year
Geneva residents are being warned a five-year programme of works to spread geothermal energy starts next year.
Home owner tax on brink of abolishment - or not
Is the much-maligned tax that home owners have to pay on the way out – or not?
Boy killed by bus in Vaud
A young boy was killed in canton Vaud on Tuesday evening after he was hit by a bus.
Quagga mussel found in Lake Zurich for first time
The invasive quagga mussel is continuing to spread.
Police officer pardoned of speeding
A police woman has been pardoned for a speeding offence dating from 2017.
Final - Geneva shops will open this Sunday
Shops in Geneva will be open this Sunday.
