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England, United Kingdom

Maida Hill · Air quality

Thursday, Nov 12 · Europe/London

Maida Hill air quality

US air quality index

37

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
10 µg/m³
PM10
11 µg/m³
Ozone
23.3 µg/m³
Nitrogen dioxide
24.7 µg/m³
Sulfur dioxide
4 µg/m³
Carbon monoxide
168.3 µg/m³
European AQI (separate scale)
1