On Thursday at 12:12 p.m. the National Weather Service reported an air quality alert in effect until Saturday Nov. 29, at midnight for San Gabriel Valley.

Guidance for air quality alerts: Insights from the NWS Los Angeles/Oxnard CA
When an air quality alert pops up on the radar, deciphering its implications is crucial. These alerts, issued by the NWS, come with straightforward yet essential guidance to ensure your safety:
Retreat indoors whenever feasible:
If possible, remain indoors, especially if you have respiratory issues, other health concerns, or fall within the senior or child demographics.
Minimize outdoor exposure:
When venturing outside is unavoidable, restrict your time outdoors solely to essential activities. Reducing exposure is paramount.
Tackle pollution sources:
Exercise prudence when it comes to activities that exacerbate pollution, such as driving cars, wielding gas-powered lawnmowers, or utilizing other motorized vehicles. Minimize their use during air quality alerts.
No open burning:
Resist the urge to burn debris or any other materials during an air quality alert. This practice only adds to the air pollution problem.
Stay well-informed:
Stay updated by tuning in to NOAA Weather Radio or your preferred weather news outlet. Staying informed helps you make wise choices regarding outdoor activities during air quality alerts.
Focus on respiratory health:
If you have respiratory problems or underlying health conditions, exercise extra caution. These conditions can increase your vulnerability to adverse effects from poor air quality.
Following the recommendations from the NWS helps bolster your safety during air quality alerts, minimizing your exposure to potentially harmful pollutants. Stay vigilant, stay protected, and make your health the top priority.