Good Air Quality (AQI 0–50)
Air quality is satisfactory and poses little or no health risk.
0–50
51–100
101–150
151–200
201–300
301–500
What Does This Mean?
Air at this level is clean by international standards. PM2.5 concentration is typically below 12 µg/m³, well within the WHO 24-hour guideline of 15 µg/m³. You can breathe easy — all outdoor activities are safe for everyone.
Who Is Affected?
No population groups are at risk at this level.
What Should You Do?
- Enjoy outdoor activities freely — running, cycling, sports are all fine
- Open windows for natural ventilation
- No masks or air purifiers needed
Key Pollutants at This Level
At AQI 0–50, all criteria pollutants (PM2.5, PM10, O₃, NO₂, SO₂, CO) are within safe limits per EPA National Ambient Air Quality Standards.