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Central Luzon, Philippines

San Antonio · Air quality

Tuesday, Oct 27 · Asia/Manila

San Antonio air quality

US air quality index

65

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
6 µg/m³
PM2.5
8 µg/m³
PM10
10 µg/m³
Ozone
17.7 µg/m³
Nitrogen dioxide
9.7 µg/m³
Sulfur dioxide
6 µg/m³
Carbon monoxide
256 µg/m³
European AQI (separate scale)
2