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Tamil Nadu, India

Vandiyūr · Air quality

Friday, Nov 13 · Asia/Kolkata

Vandiyūr air quality

US air quality index

125

Unhealthy for sensitive groups

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150Current category
  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
14 µg/m³
PM2.5
18 µg/m³
PM10
22 µg/m³
Ozone
89 µg/m³
Nitrogen dioxide
10.7 µg/m³
Sulfur dioxide
5.3 µg/m³
Carbon monoxide
280 µg/m³
European AQI (separate scale)
4