Toggle navigation
Places
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
Asia
Japan
Saitama Prefecture
Koshigaya
CAQI (Europe)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Koshigaya
Saitama Prefecture, Japan
2026-09-13 13:00
CAQI (Europe)
Low
Pollutants
PM2.5
μg/m³
19.7
NO2
μg/m³
32.9
O3
μg/m³
22.5
CO
μg/m³
500
SO2
μg/m³
2.9
Weather
℃
℃
℉
24℃
91%
13 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
CAQI (Europe)
CAQI (Europe)
PM2.5
NO2
O3
CO
SO2
Places included
Higashikoshigaya
AQI 35
Onma Shinden
AQI 32
千間台西
AQI 32
Data Sources
http://soramame.taiki.go.jp/
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Koshigaya
AQI 33
Soka
AQI 27
Yashio
AQI 24
Kasukabe
AQI 19
Misato
AQI 19
Noda
AQI 28
Nagareyama
AQI 15
Kawaguchi
AQI 30
Adachi
AQI 26
Toda
AQI 36
Saitama
AQI 35
Air Matters © 2026