Algas deixam o espelho d'água verde após repintura

O Lincoln Memorial Reflecting Pool em Washington, D.C., ficou coberto por algas verdes poucas semanas após o seu fundo ter sido repintado com a cor azul da bandeira americana e enchido novamente sob a administração Trump.

A piscina rasa no National Mall desenvolveu a proliferação nos últimos dias, adquirindo um tom esverdeado. Especialistas atribuem o crescimento à "Síndrome do Novo Lago", um problema comum após renovações em águas paradas e ensolaradas. Rosalina Stancheva Christova, da Universidade George Mason, identificou a alga como Desmodesmus, que não é tóxica.

A administração Trump respondeu com peróxido de hidrogênio e tecnologia de ozônio em nanobolhas. Na manhã de quinta-feira, trabalhadores usaram aspiradores para remover as algas mortas, embora grande parte da piscina permanecesse com um tom verde brilhante. Um porta-voz do Departamento do Interior afirmou que os tratamentos são suaves e seguros para o meio ambiente.

O custo do projeto subiu de uma estimativa inicial de US$ 2 milhões para pelo menos US$ 14 milhões. A piscina enfrentou problemas semelhantes com algas após reformas anteriores, incluindo em 2012 e 2019.

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