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Tamil Nadu, India

Mukkūdal · Air quality

Friday, Nov 13 · Asia/Kolkata

Mukkūdal air quality

US air quality index

127

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
34 µg/m³
PM2.5
40 µg/m³
PM10
41 µg/m³
Ozone
66 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
9 µg/m³
Carbon monoxide
450 µg/m³
European AQI (separate scale)
4