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Yunnan, Uchina

Yanhe · Ubora wa hewa

Ijumaa, 6 Nov · Asia/Shanghai

Yanhe air quality

US air quality index

40

Nzuri

US EPA scale

  1. Nzuri0–50Current category
  2. Wastani51–100
  3. Hewa yenye madhara kwa makundi nyeti101–150
  4. Hewa yenye madhara151–200
  5. Hewa yenye madhara makubwa201–300
  6. 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 scale

Vichafuzi vyote

PM1
8 µg/m³
PM2.5
8 µg/m³
PM10
8 µg/m³
Ozoni
47 µg/m³
Dioksidi ya nitrojeni
11.3 µg/m³
Dioksidi ya salfa
5.7 µg/m³
Monoksidi ya kaboni
301.3 µg/m³
European AQI (separate scale)
1