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Connecticut, United States

East Norwalk · Air quality

Thursday, Nov 12 · America/New York

East Norwalk air quality

US air quality index

23

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
7 µg/m³
PM2.5
8 µg/m³
PM10
11 µg/m³
Ozone
34.8 µg/m³
Nitrogen dioxide
19 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
209 µg/m³
European AQI (separate scale)
1