O que é chuva preta e como fenômeno acontece?

Devido uma grave onda de incêndios e queimadas, o estado de São Paulo tem enfrentado grande possibilidades de chuva preta. Mas afinal, o que é e como acontece.

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A chuva preta é uma precipitação escura causada pela presença de partículas de poluentes, especialmente fuligem, na atmosfera.

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A formação da chuva preta começa quando partículas de poluentes, como o carbono negro, resultantes da combustão incompleta de materiais orgânicos, se espalham pelo ar.

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Essas partículas, suspensas na atmosfera, acabam atuando como núcleos de condensação para as gotas de água nas nuvens.

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Quando essas nuvens precipitam, a água da chuva traz consigo as partículas de fuligem, resultando em uma chuva escura que pode causar impacto visual e prático significativo.

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Os efeitos da chuva preta são variados e preocupantes. Ela pode deixar uma camada de sujeira e pode agravar problemas respiratórios, principalmente em crianças, idosos, e pessoas com doenças pulmonares.

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Ela pode contaminar o solo e corpos d’água, tornando a água imprópria para consumo e afetando negativamente a agricultura e os ecossistemas locais.

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