Kasuya, Kamirenjaku, Tokyo, 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
Kasuya, Kamirenjaku, Tokyo, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 54 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Kasuya, Kamirenjaku, Tokyo, Japan
5 AM3rd Oct 2025
5 PM
4 AM4th Oct 2025
54AQI
37AQI
64AQI
48AQI
In the last 24 hours,
Kasuya's AQI reached its highest point of 64 at 2 AM during the Night, while the lowest point, 37, was recorded at 12 PM during the Day between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kasuya, Kamirenjaku, Tokyo, Japan
27°C27/28°C
25°C23/26°C
27°C24/32°C
29°C26/32°C
31°C27/35°C
30°C28/33°C
30°C28/32°C
28°C25/30°C
25°C24/27°C
27°C24/31°C
29°C27/33°C
29°C26/32°C
29°C28/33°C
31°C27/34°C
30°C24/36°C
23°C22/23°C
24°C23/25°C
26°C23/32°C
24°C22/27°C
23°C21/27°C
24°C21/27°C
25°C22/28°C
28°C25/32°C
25°C24/28°C
26°C24/28°C
27°C25/32°C
24°C22/27°C
21°C20/21°C
23°C20/27°C
24°C22/26°C
--°C/°C
40AQI
35AQI
39AQI
35AQI
2025 Days Vs Air Quality
Kasuya, Kamirenjaku, Tokyo, Japan
92%
255
8%
21
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2025, 92% of 277 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
Kasuya, Kamirenjaku, Tokyo, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
27AQI
26AQI
26AQI
25AQI
31AQI
27AQI
29AQI
26AQI
25AQI
24AQI
28AQI
29AQI
27AQI
30AQI
25AQI
29AQI
26AQI
31AQI
31AQI
32AQI
33AQI
33AQI
37AQI
34AQI
33AQI
25AQI
30AQI
27AQI
26AQI
28AQI
29AQI
31AQI
27AQI
31AQI
30AQI
28AQI
28AQI
29AQI
28AQI
28AQI
30AQI
28AQI
33AQI
28AQI
30AQI
32AQI
34AQI
31AQI
30AQI
30AQI
31AQI
31AQI
32AQI
32AQI
32AQI
30AQI
39AQI
41AQI
48AQI
46AQI
37AQI
33AQI
28AQI
33AQI
32AQI
32AQI
35AQI
34AQI
33AQI
34AQI
39AQI
28AQI
25AQI
20AQI
18AQI
18AQI
16AQI
18AQI
25AQI
28AQI
29AQI
30AQI
50AQI
59AQI
57AQI
38AQI
31AQI
38AQI
29AQI
25AQI
21AQI
19AQI
21AQI
19AQI
16AQI
17AQI
19AQI
18AQI
22AQI
23AQI
22AQI
19AQI
23AQI
20AQI
19AQI
25AQI
30AQI
33AQI
26AQI
25AQI
22AQI
16AQI
19AQI
20AQI
20AQI
20AQI
19AQI
14AQI
18AQI
18AQI
16AQI
17AQI
25AQI
18AQI
18AQI
18AQI
17AQI
18AQI
15AQI
16AQI
16AQI
20AQI
20AQI
20AQI
22AQI
18AQI
24AQI
26AQI
45AQI
35AQI
28AQI
27AQI
25AQI
19AQI
19AQI
17AQI
17AQI
19AQI
16AQI
14AQI
16AQI
18AQI
18AQI
17AQI
22AQI
24AQI
26AQI
34AQI
27AQI
24AQI
23AQI
24AQI
25AQI
20AQI
19AQI
21AQI
29AQI
24AQI
26AQI
23AQI
18AQI
12AQI
13AQI
14AQI
15AQI
15AQI
20AQI
19AQI
21AQI
37AQI
39AQI
45AQI
46AQI
48AQI
52AQI
63AQI
77AQI
78AQI
82AQI
58AQI
50AQI
54AQI
52AQI
43AQI
42AQI
40AQI
43AQI
38AQI
34AQI
34AQI
37AQI
38AQI
42AQI
42AQI
39AQI
38AQI
33AQI
40AQI
39AQI
33AQI
34AQI
34AQI
42AQI
46AQI
62AQI
52AQI
50AQI
47AQI
48AQI
49AQI
36AQI
38AQI
36AQI
34AQI
36AQI
35AQI
36AQI
39AQI
43AQI
45AQI
47AQI
50AQI
50AQI
49AQI
56AQI
56AQI
55AQI
51AQI
46AQI
52AQI
55AQI
54AQI
43AQI
38AQI
37AQI
38AQI
31AQI
29AQI
30AQI
38AQI
42AQI
37AQI
31AQI
32AQI
27AQI
36AQI
38AQI
39AQI
48AQI
46AQI
36AQI
36AQI
27AQI
29AQI
29AQI
31AQI
33AQI
52AQI
40AQI
34AQI
30AQI
28AQI
35AQI
45AQI
54AQI
29AQI
31AQI
33AQI
21AQI
21AQI
21AQI
46AQI
46AQI
36AQI
45AQI
No. of days
202532AQI
Highest AQI recorded in
July46AQI
Lowest AQI recorded in
May21AQI
202434AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
September26AQI
202339AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August26AQI
202234AQI
Highest AQI recorded in
June46AQI
Lowest AQI recorded in
August24AQI
202123AQI
Highest AQI recorded in
June35AQI
Lowest AQI recorded in
February13AQI
202016AQI
Highest AQI recorded in
August23AQI
Lowest AQI recorded in
April12AQI
Most & Least Polluted Years Over the Last 6 Years
Kasuya's annual 2025 AQI (32) shows an average percentage change of 21.2% (worsened AQI) compared to previous years: 2020 (16), 2021 (23), 2022 (34), 2023 (39), 2024 (34).