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New South Wales, Australia

Baulkham Hills · Air quality

Friday, Oct 30 · Australia/Sydney

Baulkham Hills air quality

US air quality index

43

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
5 µg/m³
PM2.5
12 µg/m³
PM10
17 µg/m³
Ozone
80 µg/m³
Nitrogen dioxide
3.3 µg/m³
Sulfur dioxide
6.3 µg/m³
Carbon monoxide
94.3 µg/m³
European AQI (separate scale)
2