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England, Ufalme wa Muungano

Elton · Ubora wa hewa

Jumamosi, 14 Nov · Europe/London

Elton air quality

US air quality index

46

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
10 µg/m³
PM2.5
12 µg/m³
PM10
14 µg/m³
Ozoni
15 µg/m³
Dioksidi ya nitrojeni
25 µg/m³
Dioksidi ya salfa
3 µg/m³
Monoksidi ya kaboni
222 µg/m³
European AQI (separate scale)
2