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Rio Grande do Sul, Brazil

Três Coroas · Air quality

Wednesday, Oct 28 · America/Sao Paulo

Três Coroas air quality

US air quality index

31

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
11 µg/m³
PM2.5
12 µg/m³
PM10
13 µg/m³
Ozone
9 µg/m³
Nitrogen dioxide
8 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
122 µg/m³
European AQI (separate scale)
1