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Tokyo, Japani

Chiyoda · Ubora wa hewa

Jumapili, 15 Nov · Asia/Tokyo

Chiyoda air quality

US air quality index

167

Hewa yenye madhara

US EPA scale

  1. Nzuri0–50
  2. Wastani51–100
  3. Hewa yenye madhara kwa makundi nyeti101–150
  4. Hewa yenye madhara151–200Current category
  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
61 µg/m³
PM2.5
64 µg/m³
PM10
66 µg/m³
Ozoni
4.3 µg/m³
Dioksidi ya nitrojeni
70.3 µg/m³
Dioksidi ya salfa
71 µg/m³
Monoksidi ya kaboni
512.7 µg/m³
European AQI (separate scale)
6