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Sint Maarten

Cul de Sac · Air quality

Thursday, Nov 5 · America/Lower Princes

Cul de Sac air quality

US air quality index

55

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
4 µg/m³
PM2.5
15 µg/m³
PM10
23 µg/m³
Ozone
43.3 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
4 µg/m³
Carbon monoxide
81 µg/m³
European AQI (separate scale)
2