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New York, United States

North Haven · Air quality

Sunday, Oct 25 · America/New York

North Haven air quality

US air quality index

28

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
4.4 µg/m³
PM10
13 µg/m³
Ozone
19.1 µg/m³
Nitrogen dioxide
23.3 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
290.7 µg/m³
European AQI (separate scale)
1