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Ventilación Natural Reduce los Picos de PM2.5 Relacionados con la Cocina en Interiores
Yizhou Su1, Yuqing Dai1, Zongbo Shi1
1School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
ACS ES&T air
|February 19, 2026
Resumen
Abrir ventanas y puertas durante la cocina reduce significativamente la exposición al material particulado fino (PM2.5) en interiores. Esta simple estrategia de ventilación ofrece una solución de baja energía para mitigar los riesgos para la salud asociados con los humos de la cocina en los hogares.
Área de la Ciencia:
- Salud Ambiental
- Calidad del Aire Interior
- Salud Pública
Sus antecedentes:
- La cocción en interiores es una fuente importante de material particulado fino (PM2.5), lo que representa riesgos agudos para la salud.
- La ventilación natural es una estrategia común en los hogares, pero su efectividad durante la cocción no está completamente cuantificada.
- Comprender el impacto de la ventilación en el PM2.5 es crucial para mitigar la contaminación del aire en interiores.
Objetivo del estudio:
- Cuantificar la efectividad de diferentes estrategias de ventilación natural para reducir las concentraciones de PM2.5 en interiores durante la cocción.
- Comparar el impacto de los escenarios de ventilación completamente abierta, solo puerta abierta y completamente cerrada.
- Evaluar la eficacia de métodos de ventilación simples y de baja energía en apartamentos modernos.
Principales métodos:
- Se realizó un monitoreo continuo de la calidad del aire en un apartamento de un dormitorio en el Reino Unido durante dos meses.
- Se compararon tres escenarios de ventilación: completamente abierta, solo puerta abierta y completamente cerrada.
- Se calibraron los sensores de calidad del aire frente a un instrumento de referencia (Fidas 200E) antes y después del estudio.
Principales resultados:
- Los niveles de PM2.5 en interiores fueron consistentemente más altos que los niveles en exteriores, con un promedio de 6.3 μg m⁻³ en exteriores.
- El escenario de ventilación completamente abierta resultó en la menor exposición a PM2.5 en interiores (14.9 μg m⁻³ sala de estar/cocina, 15.4 μg m⁻³ dormitorio).
- Las concentraciones de PM2.5 aumentaron significativamente en las condiciones de solo puerta abierta (55.8-58.4%) y completamente cerrada (27.9-28.9%) en comparación con completamente abierta.
Conclusiones:
- Abrir simultáneamente ventanas y puertas internas durante la cocción reduce sustancialmente la exposición aguda a PM2.5.
- Este enfoque de ventilación ofrece una estrategia simple y de baja energía para mitigar los riesgos agudos para la salud en apartamentos con ventilación natural.
- La ventilación natural efectiva es clave para mejorar la calidad del aire en interiores durante las actividades de cocción.
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