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Quang Tri, Vietnam

Hải Lăng · Air quality

Sunday, Nov 1 · Asia/Bangkok

Hải Lăng air quality

US air quality index

53

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  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
10 µg/m³
PM2.5
18 µg/m³
PM10
24 µg/m³
Ozone
97 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
8 µg/m³
Carbon monoxide
216 µg/m³
European AQI (separate scale)
2