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Maranhão, Brazil

Vila Nova dos Martírios · Air quality

Monday, Nov 2 · America/Fortaleza

Vila Nova dos Martírios air quality

US air quality index

73

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
21 µg/m³
PM2.5
25 µg/m³
PM10
27 µg/m³
Ozone
41 µg/m³
Nitrogen dioxide
4 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
261 µg/m³
European AQI (separate scale)
3