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North Carolina, United States

Hillsdale · Air quality

Monday, Nov 9 · America/New York

Hillsdale air quality

US air quality index

40

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
8 µg/m³
PM2.5
8.1 µg/m³
PM10
8 µg/m³
Ozone
32.4 µg/m³
Nitrogen dioxide
14 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
203 µg/m³
European AQI (separate scale)
1