AQI Levels

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Major Cities

Air Quality Index (AQI) Monitor - Track Real-time Air Quality Worldwide

What is Air Quality Index?

The Air Quality Index (AQI) is a standardized indicator used to communicate how polluted the air currently is or how polluted it is forecast to become. Our AQI Monitor provides real-time air quality data for cities worldwide, helping you make informed decisions about outdoor activities and health precautions.

Understanding Air Quality Measurements

Air quality is measured using several key pollutants including PM2.5 (fine particulate matter), PM10 (coarse particulate matter), ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide (CO). Our air quality monitor tracks all these pollutants to give you comprehensive air pollution data.

AQI Levels and Health Implications

  • Good (0-50): Air quality is satisfactory, and air pollution poses little or no risk.
  • Moderate (51-100): Air quality is acceptable for most people, though sensitive individuals should consider limiting prolonged outdoor exertion.
  • Unhealthy for Sensitive Groups (101-150): People with respiratory conditions should reduce outdoor activities.
  • Unhealthy (151-200): Everyone may begin to experience health effects.
  • Very Unhealthy (201-300): Health alert - everyone may experience serious health effects.
  • Hazardous (300+): Health warning of emergency conditions - stay indoors.

Real-time Air Quality Monitoring

Our air quality index monitor provides instant access to current pollution levels in major cities across the globe. Check the air quality in New Delhi, Beijing, Los Angeles, London, Mumbai, Shanghai, New York, and hundreds of other cities worldwide. Get real-time updates on PM2.5 levels, ozone concentration, and overall air quality status.

Why Monitor Air Quality?

Monitoring air quality is essential for protecting your health and the health of your loved ones. Poor air quality can trigger asthma attacks, worsen respiratory conditions, and lead to long-term health problems. Use our AQI monitor to:

  • Plan outdoor activities when air quality is good
  • Protect vulnerable family members from pollution
  • Track pollution trends in your area
  • Make informed decisions about exercise and commuting
  • Stay aware of air quality alerts and warnings

Features of Our Air Quality Monitor

Access comprehensive air quality data with our user-friendly interface. Search any location worldwide, view interactive air quality maps, monitor multiple pollutants, and get instant updates on changing air conditions. Our platform provides accurate, real-time air quality index measurements sourced from reliable environmental monitoring stations.