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Paraná, Brazil

Santa Helena · Air quality

Sunday, Nov 15 · America/Sao Paulo

Santa Helena air quality

US air quality index

64

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
11 µg/m³
PM10
11 µg/m³
Ozone
57.3 µg/m³
Nitrogen dioxide
4.7 µg/m³
Sulfur dioxide
0.3 µg/m³
Carbon monoxide
327.3 µg/m³
European AQI (separate scale)
2