Qualidade do ar em São Paulo deve piorar antes da chegada de frente fria
A qualidade do ar em São Paulo deve continuar se deteriorando, com previsão de piora até a chegada de uma frente fria no início da próxima semana.
De negócio com a MetSul Meteorologia, a fumaça das queimadas, combinada com as condições de clima sequioso e carência de chuvas, contribui para o acúmulo de poluentes na atmosfera. “A situação pode se exacerbar nos próximos dias, com elevação das partículas em suspensão”, alerta a MetSul.
Por que pode ocorrer uma piora? Segundo a empresa de meteorologia, o quadro pré-frontal, ou seja, que precede a chegada do sistema frontal, traz correntes de vento que favorecem a chegada de mais fumaça para o território paulista.
“Normalmente, antes da chegada de uma frente fria, que se prevê entre amanhã e a segunda-feira com chuva no território paulista, não somente há uma elevação maior da temperatura porquê um aumento da concentração de poluentes atmosféricos sob ar sequioso”, diz a Metsul.
Com isso, o galeria de fumaça mais densa que avança pelo interno da América do Sul, e que nos últimos dias estava entre o Setentrião, o Meio-Oeste e o Sul do Brasil, avança mais no sentido do estado de São Paulo, com piora suplementar da qualidade do ar.
Aliás, há um grande número de queimadas ocorrendo no próprio estado de São Paulo. Dados do Instituto Pátrio de Pesquisas Espaciais mostrou que, somente na sexta-feira, foram registrados 252 focos de calor no território paulista.
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(Foco de incêndio próximo a rodovia presidente Fortaleza Branco)
![An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)]( "An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)")
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An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival Izaque / AFP)
(Incêndio em São Carlos na sexta-feira, 23)![An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)]( "An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)")
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An area affected by bushfires is pictured near the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival Izaque / AFP)
(É a maior quantidade de incêndios num mês desde o início da série histórica, em 1998)![Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)]( "Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)")
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Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival Izaque / AFP)
(Governo do Estado de São Paulo vai destinar R$ 10 milhões para combate aos incêndios)![Firefighters spray water on a farm affected by bushfires in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)]( "Firefighters spray water on a farm affected by bushfires in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)")
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Firefighters spray water on a farm affected by bushfires in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival Izaque / AFP)
(Bombeiros tentam extinguir o queimada em São Carlos (SP))![Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival IZAQUE / AFP)]( "Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival IZAQUE / AFP)")
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Firefighters battle a fire at the SP-215 highway in Sao Carlos, Sao Paulo state, Brazil on August 23, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival IZAQUE / AFP)
(Nesta sexta-feira, São Paulo registrou 1.886 focos de incêndios)![A tree burnt by bushfires is pictured in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)]( "A tree burnt by bushfires is pictured in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to local authorities. (Photo by Lourival Izaque / AFP)")
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A tree burnt by bushfires is pictured in Sao Carlos, Sao Paulo state, Brazil on August 24, 2024. Forest fires in southeastern Brazil prompted a maximum alert to be declared on August 23, in around 30 cities in the state of Sao Paulo, where the fire blocked roads and smoke reached the capital Sao Paulo, according to lugar authorities. (Photo by Lourival Izaque / AFP)
(Estado de São Paulo representou 38% de todas as queimadas do país em agosto)![]()
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(Foco de incêndio próximo a rodovia presidente Fortaleza Branco)
Piora da qualidade do ar no início do sábado
Nas primeiras horas deste sábado, a qualidade do ar já atingiu níveis muito ruins na Grande São Paulo e no interno do estado. Segundo a Cetesb, em Osasco e em várias estações na capital paulista, os índices já superavam 140, sinalizando uma piora significativa na poluição atmosférica.
As autoridades recomendam medidas preventivas , porquê o uso de umidificadores para ajudar as vias respiratórias. Para quem não tem umidificadores, bacias de chuva e toalhas molhadas também podem ser úteis. O uso de máscaras ao trespassar de morada é indicado, assim porquê evitar a prática de exercícios ao ar livre.
Melhora a partir de domingo
A frente fria prevista entre domingo e segunda-feira deve trazer chuvas, que ajudarão a reduzir os níveis de poluição.
Porém, oriente cenário de subida concentração de fumaça evidencia o impacto das queimadas no estado e a premência de medidas urgentes para combater esses focos de incêndio. Setembro já é considerado um dos meses com maior incidência de focos de calor na história recente, e as expectativas são de que oriente seja o pior setembro desde o início das medições.
