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Tamil Nadu, India

Thirukattupalli · Air quality

Tuesday, Nov 10 · Asia/Kolkata

Thirukattupalli air quality

US air quality index

116

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
33 µg/m³
PM2.5
43 µg/m³
PM10
49 µg/m³
Ozone
124 µg/m³
Nitrogen dioxide
5 µg/m³
Sulfur dioxide
13.3 µg/m³
Carbon monoxide
346.7 µg/m³
European AQI (separate scale)
4