Innai, Ichikawa, Chiba, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Innai, Ichikawa, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (6th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 26 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 5th Aug - 6th Aug 2026
Innai, Ichikawa, Chiba, Japan
4 AM5th Aug 2026
6 PM
3 AM6th Aug 2026
25AQI
21AQI
34AQI
21AQI
In the last 24 hours,
Innai's AQI reached its highest point of 34 at 2 AM during the Night, while the lowest point, 21, was recorded at 1 AM during the Night between 5th Aug and 6th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Innai, Ichikawa, Chiba, Japan
25°C21/30°C
25°C23/29°C
26°C23/30°C
26°C24/29°C
25°C24/27°C
27°C25/30°C
27°C24/31°C
29°C26/32°C
29°C26/35°C
28°C26/30°C
27°C25/30°C
27°C24/30°C
30°C26/34°C
30°C27/35°C
30°C27/34°C
31°C28/37°C
29°C26/33°C
29°C24/34°C
28°C25/31°C
26°C23/29°C
26°C23/30°C
29°C25/35°C
31°C27/35°C
30°C27/35°C
30°C26/35°C
29°C24/34°C
25°C23/27°C
25°C22/29°C
26°C23/30°C
29°C25/33°C
38AQI
32AQI
35AQI
31AQI
2026 Days Vs Air Quality
Innai, Ichikawa, Chiba, Japan
87%
189
13%
29
Total number of days with different AQI categories in last 218 days in 2026 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 218 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
Innai, Ichikawa, Chiba, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
13AQI (US)
16AQI (US)
15AQI (US)
21AQI (US)
43AQI (US)
24AQI (US)
31AQI (US)
36AQI (US)
14AQI (US)
32AQI (US)
31AQI (US)
18AQI (US)
37AQI (US)
16AQI (US)
28AQI (US)
50AQI (US)
52AQI (US)
20AQI (US)
43AQI (US)
40AQI (US)
11AQI (US)
20AQI (US)
38AQI (US)
42AQI (US)
44AQI (US)
25AQI (US)
39AQI (US)
33AQI (US)
19AQI (US)
20AQI (US)
38AQI (US)
40AQI (US)
46AQI (US)
27AQI (US)
40AQI (US)
65AQI (US)
70AQI (US)
13AQI (US)
11AQI (US)
33AQI (US)
41AQI (US)
52AQI (US)
29AQI (US)
46AQI (US)
58AQI (US)
60AQI (US)
50AQI (US)
15AQI (US)
38AQI (US)
16AQI (US)
25AQI (US)
44AQI (US)
46AQI (US)
32AQI (US)
43AQI (US)
32AQI (US)
23AQI (US)
42AQI (US)
40AQI (US)
31AQI (US)
60AQI (US)
41AQI (US)
48AQI (US)
51AQI (US)
49AQI (US)
44AQI (US)
34AQI (US)
46AQI (US)
57AQI (US)
56AQI (US)
63AQI (US)
36AQI (US)
44AQI (US)
56AQI (US)
49AQI (US)
46AQI (US)
51AQI (US)
38AQI (US)
28AQI (US)
42AQI (US)
47AQI (US)
46AQI (US)
47AQI (US)
60AQI (US)
27AQI (US)
27AQI (US)
50AQI (US)
53AQI (US)
54AQI (US)
31AQI (US)
24AQI (US)
30AQI (US)
45AQI (US)
45AQI (US)
37AQI (US)
29AQI (US)
27AQI (US)
22AQI (US)
29AQI (US)
48AQI (US)
42AQI (US)
30AQI (US)
40AQI (US)
32AQI (US)
35AQI (US)
34AQI (US)
34AQI (US)
29AQI (US)
31AQI (US)
34AQI (US)
38AQI (US)
45AQI (US)
37AQI (US)
31AQI (US)
45AQI (US)
51AQI (US)
48AQI (US)
42AQI (US)
39AQI (US)
37AQI (US)
48AQI (US)
49AQI (US)
44AQI (US)
29AQI (US)
22AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
27AQI (US)
29AQI (US)
29AQI (US)
33AQI (US)
37AQI (US)
33AQI (US)
34AQI (US)
86AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
60AQI (US)
62AQI (US)
53AQI (US)
59AQI (US)
47AQI (US)
39AQI (US)
24AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
28AQI (US)
16AQI (US)
23AQI (US)
22AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
23AQI (US)
38AQI (US)
40AQI (US)
11AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
21AQI (US)
22AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
34AQI (US)
19AQI (US)
16AQI (US)
36AQI (US)
18AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
25AQI (US)
34AQI (US)
46AQI (US)
45AQI (US)
69AQI (US)
48AQI (US)
15AQI (US)
17AQI (US)
29AQI (US)
45AQI (US)
64AQI (US)
60AQI (US)
32AQI (US)
33AQI (US)
31AQI (US)
26AQI (US)
30AQI (US)
34AQI (US)
36AQI (US)
46AQI (US)
61AQI (US)
46AQI (US)
15AQI (US)
22AQI (US)
23AQI (US)
26AQI (US)
29AQI (US)
38AQI (US)
46AQI (US)
36AQI (US)
41AQI (US)
24AQI (US)
33AQI (US)
32AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March46AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202540AQI (US)
Highest AQI (US) recorded in
November47AQI (US)
Lowest AQI (US) recorded in
May32AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
July51AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202242AQI (US)
Highest AQI (US) recorded in
August57AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202144AQI (US)
Highest AQI (US) recorded in
August54AQI (US)
Lowest AQI (US) recorded in
February37AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
August49AQI (US)
Lowest AQI (US) recorded in
May30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Innai's annual 2026 AQI (US) (35) shows an average percentage change of -13.3% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (44), 2022 (42), 2023 (40), 2024 (39), 2025 (40).