England, Ufalme wa Muungano
Blackmore · Ubora wa hewa
Alhamisi, 12 Nov · Europe/London
Blackmore air quality
US air quality index
33Nzuri
US EPA scale
- Nzuri0–50Current category
- Wastani51–100
- 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
- 3 µg/m³
- PM2.5
- 5 µg/m³
- PM10
- 6 µg/m³
- Ozoni
- 34 µg/m³
- Dioksidi ya nitrojeni
- 10 µg/m³
- Dioksidi ya salfa
- 2 µg/m³
- Monoksidi ya kaboni
- 140 µg/m³
- European AQI (separate scale)
- 1