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Hebei, Uchina

Pengcheng · Ubora wa hewa

Jumatatu, 9 Nov · Asia/Shanghai

Pengcheng air quality

US air quality index

97

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
21 µg/m³
PM2.5
24 µg/m³
PM10
28 µg/m³
Ozoni
20 µg/m³
Dioksidi ya nitrojeni
29.3 µg/m³
Dioksidi ya salfa
11 µg/m³
Monoksidi ya kaboni
597 µg/m³
European AQI (separate scale)
4