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Algas transformam praias australianas num mar vermelho

Ambiente

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Uma maré de algas vermelhas invadiu a costa australiana, levando ao encerramento de várias praias, apesar de não representar um risco para a saúde

2012 World Press Photo of the year by Samuel Aranda, Spain, for The New York Times
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2012 World Press Photo of the year by Samuel Aranda, Spain, for The New York Times

2nd prize Arts and Entertainment Singles category by Vincent Boisot, France, Riva Press for Le Figaro Magazine
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2nd prize Arts and Entertainment Singles category by Vincent Boisot, France, Riva Press for Le Figaro Magazine

1st prize Arts and Entertainment Stories category by Rob Hornstra, The Netherlands shows the Sochi Project
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1st prize Arts and Entertainment Stories category by Rob Hornstra, The Netherlands shows the Sochi Project

1st prize Contemporary Issues Singles category by Brent Stirton, South Africa, Reportage by Getty Images for Kiev Independent
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1st prize Contemporary Issues Singles category by Brent Stirton, South Africa, Reportage by Getty Images for Kiev Independent

1st prize Daily Life Singles category by Damir Sagolj, Bosnia and Herzegovina, Reuters
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1st prize Daily Life Singles category by Damir Sagolj, Bosnia and Herzegovina, Reuters

1st prize Daily Life Singles category by Damir Sagolj, Bosnia and Herzegovina, Reuters
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1st prize Daily Life Singles category by Damir Sagolj, Bosnia and Herzegovina, Reuters

A espécie de algas, conhecida como Noctiluca scintillans, pode deixar níveis elevados na água de amónia, suscetível de causar irritação na pele e nos olhos, apesar de não representar um risco para a saúde.

A invasão de algas está a afetar sobretudo as praias de Sydney, mas muitos banhistas ignoraram os avisos e mergulharam no "mar vermelho".