Unhealthy Air Quality today

The Air Quality Index for Mammoth is currently 194 = Unhealthy
Great Basin Air Control District has indicated a rating of 287 = Very Unhealthy
Purple Air indicators show 155-405 in various areas across the district (400 = Hazardous)

Poor air quality is especially harmful to children. Since children are still growing, air pollution harms them during the developmental stage of their life, causing lifelong health problems. Children breathe more rapidly than adults and therefore absorb more pollutants. They are also closer to the ground, where some pollutants may reach peak concentrations  Exposure to air pollution at a young age can hinder lung growth, inhibit brain development and increase the risk of conditions such as asthma. Any child who complains of difficulty breathing, who is coughing, or who has asthma or other respiratory problems, should be allowed to play indoors. Please be cautious today: all persons should know that breathing in air pollutants can irritate airways and may cause shortness of breath, coughing, wheezing, asthma episodes and chest pain. If you experience any symptoms related to the air quality, please seek medical attention immediately.

All school buildings and programs are OPEN today. Please note that all Mono County Schools, including all MUSD schools and programs will close whenever the AQI exceeds 450 (PM 2.5). Three sources of Air Quality indicators are linked here (click to see the index). Mono County Schools generally rely on AirNow for the most accurate reading of current air quality.

AIRNOW Website Link (usually the most reliable)
Great Basin Unified Air Pollution Control District (local)
Purple Air (network of local sensors)

In MUSD, poor air quality may affect outdoor activities such as PE, recess and lunch. In the current air quality range (unhealthy) athletic practices/workouts for ALL participants will be reduced to 30 minutes per hour and/or held indoors.  OUTDOOR ACTIVITIES LIKE SPORTING EVENTS MAY BE MODIFIED OR CANCELLED WHEN THE AQI IS 300+.