跳至天氣
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California, United States

Hayward · 空氣質素

Friday, Oct 30 · America/Los Angeles

Hayward air quality

US air quality index

66

一般

US EPA scale

  1. 良好0–50
  2. 一般51–100Current category
  3. 對敏感人士有害101–150
  4. 有害健康151–200
  5. 對健康非常有害201–300
  6. 危險301–500+

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
4 µg/m³
PM2.5
6.1 µg/m³
PM10
10 µg/m³
臭氧
36 µg/m³
二氧化氮
4 µg/m³
二氧化硫
1 µg/m³
一氧化碳
127 µg/m³
European AQI (separate scale)
2