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England, Ufalme wa Muungano

Shirley · Ubora wa hewa

Ijumaa, 6 Nov · Europe/London

Shirley air quality

US air quality index

56

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
27 µg/m³
PM2.5
29 µg/m³
PM10
30 µg/m³
Ozoni
3.7 µg/m³
Dioksidi ya nitrojeni
27 µg/m³
Dioksidi ya salfa
12.7 µg/m³
Monoksidi ya kaboni
357 µg/m³
European AQI (separate scale)
2