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Victoria, Australia

Jan Juc · Air quality

Sunday, Nov 1 · Australia/Melbourne

Jan Juc air quality

US air quality index

18

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
1 µg/m³
PM2.5
6 µg/m³
PM10
10 µg/m³
Ozone
41 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
80 µg/m³
European AQI (separate scale)
1