Keokuk · Kalidad ng hangin

1. Mabuti0–50Current category
2. Katamtaman51–100
3. Masama sa kalusugan ng mga sensitibong grupo101–150
4. Masama sa kalusugan151–200
5. Lubhang masama sa kalusugan201–300
6. Mapanganib301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Lahat ng Polutante

PM1

2 µg/m³

PM2.5

5.2 µg/m³

PM10

2 µg/m³

Osono

43.6 µg/m³

Nitroheno dioksido

2.3 µg/m³

Asupre dioksido

1 µg/m³

Karbon monoksido

138 µg/m³

European AQI (separate scale)

1