The Air Quality Alert issued by the Mariposa County Air Pollution Control District and the Tuolumne County Air Pollution Control District remains in effect as the smoke levels continue to reach well into the hazardous range.
Exposure to particle pollution can cause serious health problems, aggravate lung disease, cause asthma attacks and acute bronchitis, and increase risk of respiratory infections.
Residents are advised to use caution as conditions warrant.
People with heart or lung diseases should follow their doctors advice for dealing with episodes of unhealthy air quality.
Older adults and children should avoid prolonged exposure, strenuous activities or heavy exertion, as conditions dictate.
This Air Quality Alert will remain in effect until at least the Ferguson Fire is extinguished.
The Fire Weather Watch that had been issued for the Stanislaus National Forest, expired this morning.