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October 5, 2026

Global Air Quality Update - Week of October 5, 2026

Live data snapshot for October 5, 2026. 217 cities tracked. Global average AQI: 71.

This week's most polluted city is Riyadh, Saudi Arabia at AQI 954. The cleanest air right now is in Yekaterinburg, Russia at AQI 19.

Biggest changes this week

Worsening

Improving

Global average shifted from 68 to 71 (+3).

Top 10 most polluted cities right now

  1. Riyadh, Saudi Arabia - AQI 954 (PM2.5 95.5 μg/m³)
  2. Delhi, India - AQI 233 (PM2.5 66.1 μg/m³)
  3. Kuwait City, Kuwait - AQI 190 (PM2.5 69.2 μg/m³)
  4. Dhaka, Bangladesh - AQI 176 (PM2.5 89.2 μg/m³)
  5. Jakarta, Indonesia - AQI 171 (PM2.5 62.4 μg/m³)
  6. Kolkata, India - AQI 165 (PM2.5 56.7 μg/m³)
  7. Bandung, Indonesia - AQI 163 (PM2.5 56 μg/m³)
  8. Kuala Lumpur, Malaysia - AQI 160 (PM2.5 44.7 μg/m³)
  9. Chittagong, Bangladesh - AQI 160 (PM2.5 63.8 μg/m³)
  10. Lucknow, India - AQI 157 (PM2.5 32.2 μg/m³)

Top 10 cleanest cities right now

  1. Yekaterinburg, Russia - AQI 19 (PM2.5 2.1 μg/m³)
  2. Havana, Cuba - AQI 19 (PM2.5 2.2 μg/m³)
  3. Guadalajara, Mexico - AQI 20 (PM2.5 3.9 μg/m³)
  4. La Paz, Bolivia - AQI 20 (PM2.5 6.3 μg/m³)
  5. Yerevan, Armenia - AQI 21 (PM2.5 4.4 μg/m³)
  6. Monterrey, Mexico - AQI 22 (PM2.5 1.7 μg/m³)
  7. Antananarivo, Madagascar - AQI 23 (PM2.5 1.6 μg/m³)
  8. Oslo, Norway - AQI 23 (PM2.5 2.4 μg/m³)
  9. Nur-Sultan, Kazakhstan - AQI 23 (PM2.5 1.7 μg/m³)
  10. Miami, United States - 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.