Is Mammoth Lakes polluted today?

Air quality in Mammoth Lakes is moderate right now: European Air Quality Index 50. People with asthma, heart or lung conditions should reduce strenuous outdoor activity.

Is it safe to exercise outdoors in Mammoth Lakes today?

For most people yes; with air quality moderate, people with asthma or heart and lung conditions should ease off intense exercise.

How is the air quality index calculated?

The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Air quality · California

Mammoth Lakes Air Quality (AQI) Now

50 Moderate
European Air Quality Index

PM2.5: 1.2µg/m³WHO limit 15
PM10: 1.7µg/m³WHO limit 45
NO₂: 0.5µg/m³
O₃: 110µg/m³
Desert dust: 0µg/m³
UV index: 0.2
US AQI: 59

Updated: 16 h ago · Source: Copernicus CAMS · Open-Meteo

Air quality in Mammoth Lakes is moderate right now: European Air Quality Index 50. Fine particulate matter (PM2.5) is 1.2 µg/m³, below the WHO guideline. People with asthma, heart or lung conditions should reduce strenuous outdoor activity. Pollution is expected to peak around 10:00 over the next 48 hours (index 61, poor). The average index over the last 5 days was 39.

Mammoth Lakes 48-hour air quality forecast

Mammoth Lakes: air quality over the last 5 days

OrbisViews archive: daily mean index.

Air quality near Mammoth Lakes

Cleanest to most polluted.

Frequently asked questions

Is Mammoth Lakes polluted today?: Air quality in Mammoth Lakes is moderate right now: European Air Quality Index 50. People with asthma, heart or lung conditions should reduce strenuous outdoor activity.
Is it safe to exercise outdoors in Mammoth Lakes today?: For most people yes; with air quality moderate, people with asthma or heart and lung conditions should ease off intense exercise.
How is the air quality index calculated?: The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Mammoth Lakes air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 0.5 µg/m³ and ozone (O₃) 110 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h). Over the last 5 days the average air quality index was 39; the worst day was Mon, November 2 (46).