Pennsylvania, Marekani
Green Tree · Ubora wa hewa
Ijumaa, 23 Okt · America/New York
Green Tree air quality
US air quality index
52Wastani
US EPA scale
- Nzuri0–50
- Wastani51–100Current category
- Hewa yenye madhara kwa makundi nyeti101–150
- Hewa yenye madhara151–200
- Hewa yenye madhara makubwa201–300
- Hatari301–500+
A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.
Understand the EPA scaleVichafuzi vyote
- PM1
- 15 µg/m³
- PM2.5
- 22.1 µg/m³
- PM10
- 16 µg/m³
- Ozoni
- 15.2 µg/m³
- Dioksidi ya nitrojeni
- 20.7 µg/m³
- Dioksidi ya salfa
- 3.7 µg/m³
- Monoksidi ya kaboni
- 266.7 µg/m³
- European AQI (separate scale)
- 2