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England, United Kingdom

Primrose Place · Air quality

Sunday, Nov 15 · Europe/London

Primrose Place air quality

US air quality index

27

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
4 µg/m³
PM2.5
5 µg/m³
PM10
5 µg/m³
Ozone
23 µg/m³
Nitrogen dioxide
12.3 µg/m³
Sulfur dioxide
2 µg/m³
Carbon monoxide
158.7 µg/m³
European AQI (separate scale)
1