Tehran, Iran
Khūrīn · Ubora wa hewa
Ijumaa, 13 Nov · Asia/Tehran
Khūrīn air quality
US air quality index
125Hewa yenye madhara kwa makundi nyeti
US EPA scale
- Nzuri0–50
- Wastani51–100
- Hewa yenye madhara kwa makundi nyeti101–150Current category
- 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
- 32 µg/m³
- PM2.5
- 33 µg/m³
- PM10
- 34 µg/m³
- Ozoni
- 0 µg/m³
- Dioksidi ya nitrojeni
- 69.3 µg/m³
- Dioksidi ya salfa
- 21.7 µg/m³
- Monoksidi ya kaboni
- 1,222 µg/m³
- European AQI (separate scale)
- 4