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Ratanakiri, Cambodia

Kong Thum · Air quality

Tuesday, Nov 3 · Asia/Phnom Penh

Kong Thum air quality

US air quality index

25

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200
  5. Very unhealthy201–300
  6. Hazardous301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

All pollutants

PM1
3 µg/m³
PM2.5
4 µg/m³
PM10
4 µg/m³
Ozone
39 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
165 µg/m³
European AQI (separate scale)
1