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Unhealthy air quality due to wildfire smoke. It is illegal to use fireplaces, wood stoves, pellet stoves, outdoor fire pits or other wood-burning devices. |
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Hindi mabuti sa katawan na kalidad ng hangin dahil sa usok ng wildfire. Ilegal na gumamit ng mga fireplace, wood stove, pellet stove, outdoor na fire pit, o iba oang device sa pagsunog ng kahoy. |
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Phẩm chất không khí không tốt do khói từ đám cháy rừng. Việc sử dụng lò sưởi, bếp củi, bếp nấu sử dụng viên nén nhiên liệu, lò sưởi ngoài trời hoặc các thiết bị đốt củi khác là bất hợp pháp. |
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Calidad del aire dañina para la salud debido al humo de incendios forestales. Es ilegal el uso de chimeneas, estufas de leña, estufas de pélets, fogatas en exteriores u otros dispositivos para quemar leña. |
Learn about the Air District's regulatory air monitoring network and special air quality studies.
The Air District maintains a comprehensive air quality monitoring network of 29 stations distributed among the nine Bay Area counties.
Various instruments at these stations measure concentrations of pollutants for which health-based ambient air quality standards have been set by the U.S. Environmental Protection Agency and the California Air Resources Board, known as criteria air pollutants. The network also measures concentrations of various pollutants that increase the understanding of the sources of the criteria air pollutants, as well as pollutants designated as Toxic Air Contaminants by the state of California.
This information is used to determine compliance with state and federal air quality standards, prepare air quality forecasts, develop air quality plans, provide information for permit modeling, prepare environmental impact reports, and track air quality trends.
Pollutants measured by the monitoring network include:
Last Updated: 18/06/2026