Riyadh Region, Saudi Arabia
Ad Dir‘īyah · 空氣質素
Tuesday, Nov 3 · Asia/Riyadh
Ad Dir‘īyah air quality
US air quality index
500危險
US EPA scale
- 良好0–50
- 一般51–100
- 對敏感人士有害101–150
- 有害健康151–200
- 對健康非常有害201–300
- 危險301–500+Current category
A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.
Understand the EPA scale所有污染物
- PM1
- 16 µg/m³
- PM2.5
- 101 µg/m³
- PM10
- 676 µg/m³
- 臭氧
- 32 µg/m³
- 二氧化氮
- 29 µg/m³
- 二氧化硫
- 25 µg/m³
- 一氧化碳
- 164 µg/m³
- European AQI (separate scale)
- 6