On March 10, visitors at Disneyland were anticipating the usual fun and excitement of the rides and attractions; however, at about 12:30 PM, an abnormal safety alert was triggered in a backstage maintenance area near the very popular ride called “Star Tours – The Adventures Continue.” The cause of the alert was an unknown odor that led to reports of employee breathing problems and dizziness after smelling it. Firefighters and hazmat crews arrived on the scene within minutes, and seven Disneyland cast members were transported by ambulance to a hospital for evaluation. Several other employees were treated at Disneyland’s first aid center. Fortunately, all affected individuals were confined to Disneyland’s backstage operations, and no Disneyland guests were affected, allowing the park to operate normally.
How the Incident Started
The alert began when employees working in a restricted maintenance zone noticed a strong smell coming from materials used during contractor work. Workers immediately reported symptoms such as dizziness and shortness of breath.
Emergency services from Anaheim Fire & Rescue responded quickly and entered the area wearing protective hazmat gear. Their first step was to isolate the source of the odor and ensure the air in surrounding areas remained safe.
Seven workers were taken to nearby hospitals for further medical evaluation. Additional staff members were treated at the site and later released after paramedics determined their symptoms were minor.
Because the location was entirely backstage, guests inside the park were never exposed to the substance.
Quick Safety Response Contained the Situation
Theme parks operate with strict safety procedures for situations involving chemical exposure or environmental hazards. Disneyland’s internal safety team and local firefighters coordinated the response rapidly.
Key steps taken during the response included:
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isolating the maintenance zone near Tomorrowland
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testing air quality using monitoring equipment
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evacuating a small backstage section as a precaution
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ventilating the affected area
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providing medical checks for employees
Within about 90 minutes, emergency crews confirmed the air was safe and allowed normal operations to continue.
Guests walking through Tomorrowland experienced little disruption, and attractions including Star Tours continued running later in the day.
Several Disneyland cast members were transported to local hospitals for evaluation following a hazardous materials incident at the theme park on Tuesday. https://t.co/pKt1K0NjYj
— FOX 13 Tampa Bay (@FOX13News) March 11, 2026
Investigators Focus on Contractor Materials
The park officials issued updates after previously reporting that the source of the foul odor was possibly due to some type of construction material (glues and sealants) used by contractors during their normal maintenance and repair activities. There are many types of adhesives, sealants, and solvents used for this type of work within theme park buildings.
These materials can create vapors or other forms of gas, especially when they’re used without sufficient ventilation, or if there’s no fresh air coming into the building. The fire department found that vapors were generated as a result of either chemical reaction(s) or from the mixing of chemicals.
OSHA and Cal/OSHA, two organizations that regulate safety in the workplace, will look at these incidents and determine whether or not contractors adhered to the safety regulations for working with construction materials (comfortable temperatures, adequate ventilation, etc.).
The Complex Operations Behind a Theme Park
Incidents like this highlight how large attractions operate more like small cities. Behind the scenes at Disneyland, thousands of employees handle everything from ride engineering to maintenance and logistics.
Backstage operations often involve:
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mechanical workshops and ride maintenance areas
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cleaning and sanitation supply storage
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construction and refurbishment zones
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utility and electrical systems
Because these areas use industrial equipment and materials, safety training and emergency response planning are essential parts of daily operations.
Disneyland employees regularly participate in safety drills and hazard reporting training so problems can be addressed quickly.
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Fast Emergency Coordination Made the Difference
Emergency responders arrived quickly after the 12:30 p.m. call and secured the area. Firefighters used monitoring tools to measure air quality and confirm that fumes had not spread to guest areas.
Officials also set up temporary safety zones and ensured that workers leaving the area received medical evaluation.
By the evening, Tomorrowland attractions were fully operational and the park continued welcoming visitors without interruption.
The rapid containment shows how coordination between park safety teams and local emergency responders helps prevent small incidents from becoming larger emergencies.
