As the Hughes Fire continues to blaze near Castaic Lake, residents of Castaic and Santa Clarita find themselves grappling with deteriorating air quality. 

Steven Barrera | KHTS News

The South Coast Air Quality Management District (AQMD) has issued multiple advisories, urging the community to take precautions as wildfire smoke and windblown dust blanket the region.

Smoke Advisory in Effect Through January 23

Thick plumes of smoke from the Hughes Fire have spread across the area, prompting AQMD to issue a Wildfire Smoke Advisory. Residents in affected zones, particularly those near the burn area, have reported smelling smoke and observing ash settling on cars, patios, and sidewalks.

Experts warn that even areas with relatively clear skies may experience harmful particulate matter in the air. “Wildfire smoke contains fine particles that can penetrate deep into the lungs, exacerbating respiratory conditions and affecting heart health,” AQMD spokesperson Dr. Emily Hayes explained.

AQMD advises residents to limit outdoor activities, especially vulnerable groups such as children, seniors, and individuals with pre-existing respiratory or cardiovascular conditions. Closing windows, running air purifiers, and using N95 masks can help reduce exposure.

Windblown Dust and Ash Advisory for January 23

The situation is compounded by high winds forecasted for Thursday, which are expected to scatter dust and ash from the fire’s burn scar. 

Unlike fine smoke particles, ash is often visible but not always detectable on air quality monitoring systems.

“The AQI may show green, but that doesn’t mean the air is safe,” Dr. Hayes noted. “Windblown ash and dust can irritate the eyes, nose, and throat, so it’s important to stay vigilant.”

Local authorities urge residents to avoid vigorous outdoor activities, clean surfaces with damp cloths rather than dry sweeping, and ensure HVAC systems are equipped with clean filters.

Outdoor workers, including landscapers and construction crews, are being urged to modify their schedules or take additional precautions.

Additionally, school will be canceled at high schools and junior high schools in the Hart District tomorrow, Thursday, Jan. 23, at the following sites:

• Castaic High School
• Valencia High School
• Rio Norte Junior High School
• Academy of the Canyons (due to the closure of Academy of the Canyons)

Three schools in the Saugus Union School District will be closed Thursday out of an abundance of caution. Due to the uncertainty of fire evacuation areas, SUSD is closing West Creek Academy, Tesoro del Valle Elementary, Mountainview Elementary, and the District Office.

Health and Safety Resources

AQMD reminds residents to stay informed via their interactive phone system at 1-800-CUT-SMOG or their website, where updates on current air quality, forecasts, and safety tips are available. 

Their Wildfire Smoke & Ash Health & Safety Tips page provides additional guidance on minimizing exposure and protecting your health.

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