How do I check the air quality near me?

Click the 'Detect My Location' button above to allow GPS access. CERNS.IO will automatically identify your nearest city and display real-time AQI, PM2.5, temperature, and health recommendations.

What AQI level is safe to go outside?

AQI 0–50 (Good) and 51–100 (Moderate) are generally safe for most people. AQI 101–150 (Unhealthy for Sensitive Groups) means vulnerable groups should reduce prolonged outdoor exertion. AQI above 150 is unhealthy for everyone.

Air Quality Near Me

Most Polluted Cities Right Now