Bijogi, Shimotoda, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Bijogi, Shimotoda, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (10th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 45 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Feb - 10th Feb 2026
Bijogi, Shimotoda, Saitama, Japan
6 AM9th Feb 2026
5 PM
5 AM10th Feb 2026
85AQI
25AQI
59AQI
12AQI
In the last 24 hours,
Bijogi's AQI reached its highest point of 85 at 10 AM during the Day, while the lowest point, 12, was recorded at 10 PM during the Night between 9th Feb and 10th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Bijogi, Shimotoda, Saitama, Japan
5°C2/7°C
9°C4/15°C
8°C5/10°C
8°C5/11°C
10°C7/15°C
10°C6/13°C
8°C5/10°C
8°C6/9°C
7°C3/12°C
3°C2/6°C
3°C1/6°C
4°C1/7°C
6°C2/10°C
4°C2/7°C
4°C1/7°C
6°C3/9°C
6°C4/9°C
5°C3/8°C
4°C2/7°C
5°C2/8°C
6°C3/9°C
7°C4/9°C
7°C4/10°C
7°C4/10°C
9°C6/12°C
9°C6/14°C
3°C1/4°C
0°C-2/1°C
2°C-1/7°C
6°C2/11°C
43AQI
28AQI
40AQI
31AQI
2026 Days Vs Air Quality
Bijogi, Shimotoda, Saitama, Japan
95%
39
5%
2
Total number of days with different AQI categories in last 42 days in 2026 (323 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 42 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Bijogi, Shimotoda, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
16AQI (US)
17AQI (US)
25AQI (US)
44AQI (US)
13AQI (US)
29AQI (US)
39AQI (US)
20AQI (US)
36AQI (US)
36AQI (US)
16AQI (US)
38AQI (US)
16AQI (US)
34AQI (US)
48AQI (US)
50AQI (US)
31AQI (US)
48AQI (US)
41AQI (US)
15AQI (US)
24AQI (US)
39AQI (US)
41AQI (US)
44AQI (US)
25AQI (US)
43AQI (US)
14AQI (US)
20AQI (US)
38AQI (US)
39AQI (US)
39AQI (US)
24AQI (US)
24AQI (US)
39AQI (US)
61AQI (US)
53AQI (US)
15AQI (US)
26AQI (US)
39AQI (US)
45AQI (US)
31AQI (US)
37AQI (US)
No. of days
202632AQI (US)
Highest AQI (US) recorded in
February37AQI (US)
Lowest AQI (US) recorded in
January31AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October48AQI (US)
Lowest AQI (US) recorded in
February35AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
August33AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202240AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
August35AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
August44AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Bijogi's annual 2026 AQI (US) (32) shows an average percentage change of -19.2% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (39), 2022 (40), 2023 (43), 2024 (39), 2025 (42).