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May 25, 2026

Global Air Quality Update - Week of May 25, 2026

Live data snapshot for May 25, 2026. 217 cities tracked. Global average AQI: 75.

This week's most polluted city is Jeddah, Saudi Arabia at AQI 1425. The cleanest air right now is in Quito, Ecuador at AQI 12.

Biggest changes this week

Worsening

Improving

Global average shifted from 80 to 75 (-5).

Top 10 most polluted cities right now

  1. Jeddah, Saudi Arabia - AQI 1425 (PM2.5 299 μg/m³)
  2. Riyadh, Saudi Arabia - AQI 972 (PM2.5 106.2 μg/m³)
  3. Delhi, India - AQI 536 (PM2.5 151.3 μg/m³)
  4. Kanpur, India - AQI 524 (PM2.5 148.1 μg/m³)
  5. Kuwait City, Kuwait - AQI 455 (PM2.5 147.1 μg/m³)
  6. Lucknow, India - AQI 260 (PM2.5 123.4 μg/m³)
  7. Jaipur, India - AQI 205 (PM2.5 71.5 μg/m³)
  8. Santiago, Chile - AQI 168 (PM2.5 60.3 μg/m³)
  9. Khartoum, Sudan - AQI 167 (PM2.5 96.2 μg/m³)
  10. Dubai, UAE - AQI 158 (PM2.5 57.7 μg/m³)

Top 10 cleanest cities right now

  1. Quito, Ecuador - AQI 12 (PM2.5 3.1 μg/m³)
  2. La Paz, Bolivia - AQI 13 (PM2.5 1.2 μg/m³)
  3. Brasilia, Brazil - AQI 15 (PM2.5 3.6 μg/m³)
  4. Adelaide, Australia - AQI 18 (PM2.5 4.3 μg/m³)
  5. Hamburg, Germany - AQI 21 (PM2.5 7.5 μg/m³)
  6. Montevideo, Uruguay - AQI 21 (PM2.5 4.4 μg/m³)
  7. Havana, Cuba - AQI 21 (PM2.5 4.1 μg/m³)
  8. Abidjan, Ivory Coast - AQI 22 (PM2.5 5.6 μg/m³)
  9. Auckland, New Zealand - AQI 23 (PM2.5 8.3 μg/m³)
  10. Vilnius, Lithuania - AQI 23 (PM2.5 3.4 μg/m³)

What is AQI?

AQI (Air Quality Index) is a 0-500 scale used by the US EPA. Below 50 is good, above 150 unhealthy, above 300 hazardous. Most damage comes from PM2.5 - fine particles that enter the bloodstream. Learn more: PM2.5 explained.

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Data: live readings refreshed every 30 minutes by atmos.today. See methodology and attribution.