Izumigaoka, Utsunomiya, Tochigi, 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
Izumigaoka, Utsunomiya, Tochigi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (14th February):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 67 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Feb - 14th Feb 2026
Izumigaoka, Utsunomiya, Tochigi, Japan
6 AM13th Feb 2026
5 PM
5 AM14th Feb 2026
69AQI
20AQI
106AQI
38AQI
In the last 24 hours,
Izumigaoka's AQI reached its highest point of 106 at 4 AM during the Night, while the lowest point, 20, was recorded at 1 PM during the Day between 13th Feb and 14th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Izumigaoka, Utsunomiya, Tochigi, Japan
7°C3/13°C
7°C3/12°C
5°C2/9°C
5°C1/8°C
4°C0/10°C
2°C0/5°C
1°C-1/3°C
1°C-2/6°C
2°C-1/7°C
1°C-1/4°C
1°C-1/5°C
4°C1/8°C
3°C0/7°C
2°C0/7°C
2°C-1/5°C
2°C-1/6°C
3°C-1/8°C
3°C0/8°C
3°C0/8°C
4°C0/10°C
7°C2/11°C
7°C3/13°C
1°C-1/2°C
-3°C-8/0°C
0°C-5/5°C
3°C-1/8°C
4°C1/8°C
5°C1/9°C
5°C1/10°C
7°C2/13°C
54AQI
35AQI
46AQI
30AQI
2026 Days Vs Air Quality
Izumigaoka, Utsunomiya, Tochigi, Japan
91%
41
9%
4
Total number of days with different AQI categories in last 46 days in 2026 (319 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 46 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
Izumigaoka, Utsunomiya, Tochigi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
19AQI (US)
18AQI (US)
27AQI (US)
27AQI (US)
33AQI (US)
25AQI (US)
41AQI (US)
40AQI (US)
34AQI (US)
46AQI (US)
46AQI (US)
18AQI (US)
32AQI (US)
17AQI (US)
35AQI (US)
54AQI (US)
50AQI (US)
32AQI (US)
45AQI (US)
34AQI (US)
23AQI (US)
27AQI (US)
51AQI (US)
51AQI (US)
40AQI (US)
19AQI (US)
28AQI (US)
29AQI (US)
30AQI (US)
38AQI (US)
44AQI (US)
43AQI (US)
19AQI (US)
22AQI (US)
49AQI (US)
47AQI (US)
42AQI (US)
14AQI (US)
15AQI (US)
39AQI (US)
48AQI (US)
50AQI (US)
33AQI (US)
48AQI (US)
67AQI (US)
34AQI (US)
38AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
February38AQI (US)
Lowest AQI (US) recorded in
January34AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
October49AQI (US)
Lowest AQI (US) recorded in
February32AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April45AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
April42AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
June44AQI (US)
Lowest AQI (US) recorded in
November36AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
August49AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Izumigaoka's annual 2026 AQI (US) (35) shows an average percentage change of -7.9% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (39), 2022 (37), 2023 (38), 2024 (37), 2025 (41).