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Heilongjiang, Uchina

Shihe · Ubora wa hewa

Alhamisi, 12 Nov · Asia/Shanghai

Shihe air quality

US air quality index

95

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
15 µg/m³
PM2.5
21 µg/m³
PM10
28 µg/m³
Ozoni
37.7 µg/m³
Dioksidi ya nitrojeni
5.7 µg/m³
Dioksidi ya salfa
6.3 µg/m³
Monoksidi ya kaboni
315.7 µg/m³
European AQI (separate scale)
4