Luca Zaia, President of the Veneto Region, wrote on Twitter on Monday. Experts from the environmental protection agency Arpa Veneto had determined when evaluating samples that it is likely to be a coloring organic agent that is used in water inspections or in caving. There is no risk of water pollution.
Zaia criticized that Venice had become a “stage for actions”. The green spot appeared in the water near the famous Rialto Bridge on Sunday morning. It could be a protest by environmental activists who had recently carried out actions at well-known locations in Italy. At first, however, no one acknowledged this.