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England, Ufalme wa Muungano

Pelynt · Ubora wa hewa

Jumatano, 11 Nov · Europe/London

Pelynt air quality

US air quality index

16

Nzuri

US EPA scale

  1. Nzuri0–50Current category
  2. Wastani51–100
  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
2 µg/m³
PM2.5
2 µg/m³
PM10
2 µg/m³
Ozoni
13 µg/m³
Dioksidi ya nitrojeni
11 µg/m³
Dioksidi ya salfa
1.3 µg/m³
Monoksidi ya kaboni
220 µg/m³
European AQI (separate scale)
1