Buenos Aires:A bright pink lagoon is setting off red alarms for environmentalists in southern Argentina.
The pond is one of several located about 30 kilometres (20 miles) from the city of Trelew used by local industries for releasing chemicals or treated water.
Pablo Lada, a member of the Socio-Environmental Assemblies of Chubut province called Friday for an independent analysis to determine what is to blame.
Landa said the water had taken on a rosy hue before, but “now it is striking; it is an intense pink.” He said specialists suspect it’s caused by sodium sulfite, used to help preserve shellfish.
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