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Heilongjiang, Uchina

Changqing · Ubora wa hewa

Jumapili, 8 Nov · Asia/Shanghai

Changqing air quality

US air quality index

66

Wastani

US EPA scale

  1. Nzuri0–50
  2. Wastani51–100Current category
  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
9 µg/m³
PM2.5
11 µg/m³
PM10
12 µg/m³
Ozoni
60.7 µg/m³
Dioksidi ya nitrojeni
5 µg/m³
Dioksidi ya salfa
3.7 µg/m³
Monoksidi ya kaboni
186.3 µg/m³
European AQI (separate scale)
2