Qazvin Province, Iran
Dākān · Ubora wa hewa
Jumapili, 1 Nov · Asia/Tehran
Dākān air quality
US air quality index
51Wastani
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
- 20 µg/m³
- PM10
- 30 µg/m³
- Ozoni
- 1 µg/m³
- Dioksidi ya nitrojeni
- 53 µg/m³
- Dioksidi ya salfa
- 5 µg/m³
- Monoksidi ya kaboni
- 495 µg/m³
- European AQI (separate scale)
- 2