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Borkou, Chad

Kirdimi · Air quality

Thursday, 29 Oct · Africa/Ndjamena

Kirdimi air quality

US air quality index

330

Dangerous

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. E no good for sensitive people101–150
  4. E no good for health151–200
  5. E bad well well for health201–300
  6. Dangerous301–500+Current category

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
2 µg/m³
PM2.5
22 µg/m³
PM10
106 µg/m³
Ozone
29.7 µg/m³
Nitrogen dioxide
0 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
98.7 µg/m³
European AQI (separate scale)
6