The neon-green water in a stream in the Bad Tölz district apparently never posed a danger to humans or animals at any point. This is the assessment of the Water Management Office in Weilheim. According to them, unknown individuals likely introduced the chemical Uranine into the Lainbach stream below a waterfall. The substance is considered harmless.
Contamination No Longer Visible the Following Day
The final results of the investigations are still pending. The office is currently reviewing whether further samples should be taken from the stream. According to the Kochel am See volunteer fire department, the contamination—which was likely poured into the water on Saturday—was no longer visible by Sunday. The Lainbach flows into Lake Kochel. Hikers noticed the conspicuous color and alerted the police.
Uranine on Saint Patrick’s Day
Uranine turns water a bright green and is used, for instance, to visualize the flow paths and speeds of water bodies. Until the 1960s, this chemical was used to dye the Chicago River green for the Saint Patrick’s Day holiday in the US metropolis. Today, the effect is achieved with other dyes.
