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Tianjin, Uchina

Wanxing · Ubora wa hewa

Alhamisi, 5 Nov · Asia/Shanghai

Wanxing air quality

US air quality index

144

Hewa yenye madhara kwa makundi nyeti

US EPA scale

  1. Nzuri0–50
  2. Wastani51–100
  3. Hewa yenye madhara kwa makundi nyeti101–150Current category
  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
13 µg/m³
PM10
18 µg/m³
Ozoni
46.7 µg/m³
Dioksidi ya nitrojeni
18.3 µg/m³
Dioksidi ya salfa
4.3 µg/m³
Monoksidi ya kaboni
227 µg/m³
European AQI (separate scale)
5