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August 31, 2026

Global Air Quality Update - Week of August 31, 2026

Live data snapshot for August 31, 2026. 217 cities tracked. Global average AQI: 67.

This week's most polluted city is Riyadh, Saudi Arabia at AQI 975. The cleanest air right now is in Quito, Ecuador at AQI 10.

Biggest changes this week

Worsening

Improving

Global average shifted from 70 to 67 (-3).

Top 10 most polluted cities right now

  1. Riyadh, Saudi Arabia - AQI 975 (PM2.5 130.9 μg/m³)
  2. Kuwait City, Kuwait - AQI 434 (PM2.5 146.7 μg/m³)
  3. Bandung, Indonesia - AQI 194 (PM2.5 58.2 μg/m³)
  4. Delhi, India - AQI 186 (PM2.5 99.2 μg/m³)
  5. Kuala Lumpur, Malaysia - AQI 166 (PM2.5 52 μg/m³)
  6. Lucknow, India - AQI 156 (PM2.5 40.5 μg/m³)
  7. Faisalabad, Pakistan - AQI 155 (PM2.5 47.7 μg/m³)
  8. Tianjin, China - AQI 154 (PM2.5 16 μg/m³)
  9. Lahore, Pakistan - AQI 153 (PM2.5 68 μg/m³)
  10. Beijing, China - AQI 152 (PM2.5 12.3 μg/m³)

Top 10 cleanest cities right now

  1. Quito, Ecuador - AQI 10 (PM2.5 2.4 μg/m³)
  2. La Paz, Bolivia - AQI 13 (PM2.5 1.8 μg/m³)
  3. Hua Hin, Thailand - AQI 20 (PM2.5 2.5 μg/m³)
  4. Berlin, Germany - AQI 21 (PM2.5 3.8 μg/m³)
  5. Pattaya, Thailand - AQI 21 (PM2.5 3.5 μg/m³)
  6. San Jose, Costa Rica - AQI 21 (PM2.5 4.1 μg/m³)
  7. Havana, Cuba - AQI 22 (PM2.5 1.9 μg/m³)
  8. London, United Kingdom - AQI 23 (PM2.5 3.3 μg/m³)
  9. Madrid, Spain - AQI 23 (PM2.5 3.8 μg/m³)
  10. Rayong, Thailand - AQI 23 (PM2.5 4.1 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.