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Henan, Uchina

Diying · Ubora wa hewa

Jumatatu, 16 Nov · Asia/Shanghai

Diying air quality

US air quality index

180

Hewa yenye madhara

US EPA scale

  1. Nzuri0–50
  2. Wastani51–100
  3. Hewa yenye madhara kwa makundi nyeti101–150
  4. Hewa yenye madhara151–200Current category
  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
58 µg/m³
PM2.5
72 µg/m³
PM10
79 µg/m³
Ozoni
2 µg/m³
Dioksidi ya nitrojeni
39.7 µg/m³
Dioksidi ya salfa
10.7 µg/m³
Monoksidi ya kaboni
663.7 µg/m³
European AQI (separate scale)
6