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Rio Grande do Norte, Brazil

Vila Punaú · Air quality

Monday, Nov 2 · America/Fortaleza

Vila Punaú air quality

US air quality index

35

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
2 µg/m³
PM2.5
8 µg/m³
PM10
12 µg/m³
Ozone
32 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
126 µg/m³
European AQI (separate scale)
1