Smoke from Local Fire Creates Unhealthy Air Concerns Across Merced County
Merced County, California — August 26, 2026: An Air Quality Alert remains in effect for Merced County due to smoke from a local fire, creating potentially unhealthy air conditions across parts of the Central Valley, including Merced, California. The Valley Air District issued the alert from Tuesday morning through Thursday morning because of smoke impacts. (National Weather Service)
The smoke is associated with a large tire fire at a recycling facility in the Ballico area. Merced County officials say thousands of tons of outdoor tire-storage material are burning, producing heavy smoke that can remain close to the ground and affect downwind communities. (Merced County)
Why the Smoke Is a Health Concern
Smoke from burning tires and other materials can contain fine particulate matter and other pollutants. PM2.5 particles are small enough to penetrate deep into the respiratory system, making prolonged exposure a concern even when visibility appears relatively good.
The National Weather Service warns that particle pollution can aggravate lung disease, trigger asthma attacks, contribute to acute bronchitis and increase the risk of respiratory infections. People with heart disease, children and older adults can be particularly vulnerable. (National Weather Service)
Smoke May Be Noticeable in Merced
Residents should not rely solely on an air-quality monitor to determine whether conditions are safe. Merced County health officials advise that smelling smoke, burning rubber or seeing haze or ash can indicate exposure to poor air quality. (Merced County)
Smoke concentrations can also change quickly as wind direction and atmospheric mixing change.
What Residents in Merced County Should Do
During periods of noticeable smoke, residents should take steps to reduce exposure:
- Stay indoors whenever possible.
- Keep windows and doors closed.
- Use air conditioning and indoor air filtration when available.
- Avoid prolonged or strenuous outdoor activities.
- Keep children and vulnerable individuals away from smoky outdoor conditions.
- Avoid the fire area so emergency crews have room to operate.
- Monitor current air-quality conditions and local health advisories.
Merced County also says cooling zones can serve as clean-air centers for residents seeking relief from smoke, with N95 masks available at those locations. Standard surgical masks do not provide the same level of protection against smoke particles as a properly fitted N95. (Merced County)
Ballico Tire Fire Continues to Affect Air Quality
The fire is burning at a recycling facility in the 13000 block of Newport Road in Ballico. County officials reported that approximately 9,000 tons of outdoor tire-storage material were burning and that active burning could continue for an extended period, potentially up to a week. (Merced County)
Because weather conditions can trap smoke near the surface, communities downwind may continue experiencing periods of reduced air quality even when the fire itself is not nearby.
Newport Road is also closed between Sunny Acres Avenue and W. East Avenue while crews respond to the incident. Drivers should avoid the area and follow directions from emergency officials. (Merced County)
Air Quality Could Change Quickly
Smoke conditions are highly dependent on wind, atmospheric mixing and the location of the fire. A shift in wind direction could move smoke into different communities, while stronger mixing could temporarily improve conditions near the surface.
For that reason, residents should continue checking the latest air-quality information rather than assuming conditions will remain unchanged throughout the alert period.
Radar Watch HQ Safety Reminder
If you are in Merced County or the surrounding Central Valley, take visible or noticeable smoke seriously. Reduce outdoor exposure, keep indoor air as clean as possible and pay particular attention to children, older adults and people with respiratory or cardiovascular conditions.
For current air-quality conditions and smoke information, residents should monitor official local health and air-quality updates. (Merced County)
Radar Watch HQ Final Thoughts
The Merced County Air Quality Alert is a reminder that smoke from a local fire can create health concerns well beyond the immediate fire area. With the Ballico tire fire continuing to produce smoke, conditions may remain variable across Merced County through the alert period.
Stay informed, limit smoke exposure and avoid unnecessary outdoor activity when smoke is present.
Stay weather-aware and stay safe with Radar Watch HQ.
Radar Watch HQ Air Quality Essentials
Affiliate Disclosure: As an Amazon Associate, Radar Watch HQ earns from qualifying purchases.
- HEPA Air Purifier – Helps remove smoke, dust, pollen, and fine particulate matter (PM2.5) from indoor air.
- N95 Respirator Masks – Provides added protection when outdoor air quality reaches unhealthy levels.
- Portable Air Quality Monitor – Tracks indoor PM2.5, AQI, temperature, and humidity in real time.
- Replacement HEPA Air Filters – Keep home HVAC systems and air purifiers operating efficiently during extended air quality events.
- Portable Battery Power Station – Keeps air purifiers, fans, phones, and other essential devices powered during outages caused by severe weather or wildfire-related emergencies.
