Occurred on June 8, 2019 / Odessa, Ukraine
Info from Licensor: "In the Odessa region, the Black Sea has turned green.The reason for the change in water is the multiplication in water of microscopic organisms - cyanobacteria Nodularia spumigena, which release toxic substances. They began to multiply due to heavy rains and heat. Officially, the city authorities have not banned swimming in the sea, but environmentalists do not advise to do this, because, in contact with skin, allergic reactions may develop."