1 chome, Okazaki, Aichi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
1 chome, Okazaki, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (13th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Oct - 14th Oct 2025
1 chome, Okazaki, Aichi, Japan
5 AM13th Oct 2025
5 PM
4 AM14th Oct 2025
AQI
AQI
56AQI
38AQI
In the last 24 hours,
1 chome's AQI reached its highest point of 56 at 5 AM during the Night, while the lowest point, 38, was recorded at 8 PM during the Night between 13th Oct and 14th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
1 chome, Okazaki, Aichi, Japan
27°C25/30°C
29°C25/33°C
28°C25/33°C
29°C26/33°C
28°C25/32°C
24°C23/26°C
23°C22/24°C
25°C22/30°C
23°C20/26°C
23°C20/26°C
23°C20/27°C
25°C22/28°C
26°C22/32°C
25°C21/29°C
25°C22/28°C
24°C22/28°C
23°C20/26°C
22°C20/24°C
22°C18/26°C
23°C21/26°C
22°C21/23°C
23°C21/27°C
24°C20/30°C
24°C22/27°C
25°C22/30°C
25°C22/28°C
21°C20/23°C
21°C21/22°C
23°C21/27°C
--°C/°C
--°C/°C
44AQI
41AQI
46AQI
43AQI
2025 Days Vs Air Quality
1 chome, Okazaki, Aichi, Japan
76%
105
24%
33
Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)
Under WHO’s Safe Air Quality Limits: 76%
Health Risk Level:
Low
In 2025, 76% of 286 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
1 chome, Okazaki, Aichi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
28AQI
21AQI
25AQI
33AQI
20AQI
33AQI
31AQI
37AQI
43AQI
47AQI
30AQI
23AQI
24AQI
30AQI
30AQI
23AQI
22AQI
30AQI
29AQI
33AQI
40AQI
40AQI
32AQI
28AQI
24AQI
22AQI
21AQI
20AQI
26AQI
25AQI
26AQI
35AQI
42AQI
52AQI
50AQI
55AQI
68AQI
61AQI
67AQI
70AQI
79AQI
63AQI
57AQI
56AQI
55AQI
49AQI
51AQI
52AQI
47AQI
45AQI
42AQI
40AQI
37AQI
35AQI
34AQI
32AQI
28AQI
27AQI
26AQI
29AQI
35AQI
34AQI
34AQI
41AQI
43AQI
47AQI
62AQI
51AQI
52AQI
50AQI
46AQI
50AQI
45AQI
39AQI
36AQI
36AQI
40AQI
39AQI
40AQI
41AQI
43AQI
47AQI
46AQI
47AQI
46AQI
48AQI
57AQI
57AQI
56AQI
52AQI
51AQI
54AQI
56AQI
54AQI
44AQI
36AQI
39AQI
25AQI
29AQI
27AQI
31AQI
37AQI
37AQI
35AQI
30AQI
30AQI
28AQI
36AQI
37AQI
44AQI
51AQI
52AQI
46AQI
42AQI
37AQI
36AQI
37AQI
35AQI
44AQI
34AQI
37AQI
37AQI
27AQI
28AQI
37AQI
49AQI
48AQI
54AQI
43AQI
50AQI
51AQI
61AQI
59AQI
54AQI
54AQI
49AQI
57AQI
25AQI
29AQI
47AQI
47AQI
36AQI
51AQI
No. of days
202541AQI
Highest AQI recorded in
October51AQI
Lowest AQI recorded in
May25AQI
Most & Least Polluted Years Over the Last 1 Years
1 chome's annual 2025 AQI (41) shows an average percentage change of NaN% (improved AQI) compared to previous years: .