Global PM2.5 AQI Map

This is an interactive global PM2.5 AQI map that shows the real-time PM2.5 index based on the user’s location. Users can also drag the map to explore PM2.5 conditions worldwide, understand differences in air quality across regions, and use it as a reference for travel and health protection.

What is PM2.5?

PM2.5 refers to fine particulate matter with a diameter of less than 2.5 micrometers, about 1/28 the width of a human hair. Because of their tiny size, PM2.5 particles can penetrate deep into the lungs and even enter the bloodstream. Long-term exposure may increase the risk of cardiovascular diseases, respiratory illnesses, and cancer.