Imamiyacho, Kanuma, Tochigi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Imamiyacho, Kanuma, Tochigi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 43 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Imamiyacho, Kanuma, Tochigi, Japan
5 AM30th Sep 2025
5 PM
4 AM1st Oct 2025
AQI
AQI
52AQI
18AQI
In the last 24 hours,
Imamiyacho's AQI reached its highest point of 52 at 11 PM during the Night, while the lowest point, 18, was recorded at 7 AM during the Night between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Imamiyacho, Kanuma, Tochigi, Japan
27°C22/34°C
28°C23/35°C
26°C22/33°C
24°C22/29°C
22°C21/23°C
24°C19/30°C
25°C21/31°C
26°C21/31°C
26°C23/31°C
24°C22/27°C
23°C21/26°C
21°C20/23°C
22°C20/25°C
25°C21/30°C
25°C23/29°C
25°C20/31°C
26°C22/32°C
24°C20/32°C
19°C18/21°C
19°C18/20°C
22°C17/27°C
19°C14/24°C
18°C15/22°C
18°C14/23°C
21°C15/26°C
23°C18/29°C
21°C18/26°C
20°C16/23°C
23°C18/30°C
--°C/°C
--°C/°C
38AQI
31AQI
37AQI
34AQI
2025 Days Vs Air Quality
Imamiyacho, Kanuma, Tochigi, Japan
85%
231
15%
41
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 273 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Imamiyacho, Kanuma, Tochigi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI
27AQI
24AQI
25AQI
29AQI
44AQI
28AQI
32AQI
28AQI
26AQI
25AQI
30AQI
28AQI
35AQI
30AQI
30AQI
30AQI
29AQI
41AQI
33AQI
41AQI
33AQI
38AQI
45AQI
33AQI
35AQI
33AQI
31AQI
29AQI
29AQI
27AQI
30AQI
37AQI
31AQI
31AQI
32AQI
30AQI
31AQI
30AQI
28AQI
27AQI
27AQI
32AQI
30AQI
30AQI
28AQI
38AQI
35AQI
32AQI
29AQI
29AQI
30AQI
30AQI
31AQI
32AQI
35AQI
38AQI
40AQI
47AQI
56AQI
52AQI
39AQI
40AQI
29AQI
31AQI
31AQI
41AQI
35AQI
38AQI
46AQI
46AQI
46AQI
42AQI
46AQI
25AQI
25AQI
26AQI
19AQI
26AQI
38AQI
47AQI
54AQI
54AQI
71AQI
62AQI
72AQI
53AQI
36AQI
36AQI
34AQI
28AQI
21AQI
21AQI
20AQI
30AQI
26AQI
29AQI
41AQI
30AQI
45AQI
37AQI
41AQI
27AQI
26AQI
27AQI
25AQI
46AQI
53AQI
68AQI
65AQI
47AQI
55AQI
30AQI
40AQI
36AQI
48AQI
46AQI
53AQI
34AQI
46AQI
43AQI
31AQI
33AQI
34AQI
35AQI
29AQI
26AQI
32AQI
37AQI
21AQI
23AQI
21AQI
35AQI
42AQI
46AQI
52AQI
32AQI
40AQI
42AQI
55AQI
64AQI
55AQI
50AQI
41AQI
31AQI
32AQI
27AQI
28AQI
36AQI
27AQI
18AQI
22AQI
35AQI
35AQI
29AQI
37AQI
47AQI
55AQI
66AQI
60AQI
43AQI
33AQI
44AQI
44AQI
39AQI
30AQI
40AQI
41AQI
39AQI
43AQI
44AQI
41AQI
38AQI
39AQI
35AQI
27AQI
28AQI
35AQI
36AQI
44AQI
49AQI
52AQI
50AQI
54AQI
53AQI
55AQI
59AQI
72AQI
76AQI
79AQI
60AQI
45AQI
47AQI
50AQI
36AQI
35AQI
41AQI
38AQI
38AQI
37AQI
40AQI
45AQI
48AQI
49AQI
52AQI
51AQI
54AQI
52AQI
51AQI
48AQI
38AQI
42AQI
37AQI
41AQI
45AQI
55AQI
51AQI
46AQI
39AQI
36AQI
39AQI
39AQI
35AQI
33AQI
32AQI
34AQI
40AQI
42AQI
38AQI
43AQI
43AQI
48AQI
47AQI
47AQI
48AQI
53AQI
54AQI
55AQI
48AQI
47AQI
49AQI
52AQI
52AQI
45AQI
39AQI
36AQI
35AQI
30AQI
30AQI
31AQI
38AQI
40AQI
39AQI
33AQI
35AQI
34AQI
41AQI
39AQI
46AQI
45AQI
39AQI
30AQI
26AQI
23AQI
25AQI
25AQI
26AQI
45AQI
49AQI
33AQI
42AQI
43AQI
31AQI
32AQI
42AQI
38AQI
36AQI
40AQI
50AQI
44AQI
36AQI
No. of days
202539AQI
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
January31AQI
202435AQI
Highest AQI recorded in
April51AQI
Lowest AQI recorded in
January25AQI
202335AQI
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
December26AQI
202236AQI
Highest AQI recorded in
August52AQI
Lowest AQI recorded in
October29AQI
202132AQI
Highest AQI recorded in
June40AQI
Lowest AQI recorded in
December27AQI
202032AQI
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
September22AQI
Most & Least Polluted Years Over the Last 6 Years
Imamiyacho's annual 2025 AQI (39) shows an average percentage change of 14.3% (worsened AQI) compared to previous years: 2020 (32), 2021 (32), 2022 (36), 2023 (35), 2024 (35).