Haruecho, 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
Haruecho, Ichikawa, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (9th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 8th Aug - 9th Aug 2026
Haruecho, Ichikawa, Chiba, Japan
4 AM8th Aug 2026
6 PM
3 AM9th Aug 2026
69AQI
21AQI
48AQI
25AQI
In the last 24 hours,
Haruecho's AQI reached its highest point of 69 at 4 AM during the Day, while the lowest point, 21, was recorded at 9 AM during the Day between 8th Aug and 9th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Haruecho, Ichikawa, Chiba, Japan
26°C24/29°C
25°C24/27°C
26°C25/29°C
27°C24/30°C
28°C26/31°C
29°C26/33°C
28°C26/30°C
27°C25/29°C
27°C25/30°C
29°C26/33°C
30°C26/33°C
30°C27/33°C
31°C28/36°C
29°C26/32°C
28°C24/33°C
27°C25/30°C
26°C24/29°C
26°C23/29°C
29°C25/33°C
30°C27/34°C
30°C28/34°C
30°C26/34°C
29°C24/33°C
25°C24/27°C
25°C23/28°C
26°C23/30°C
28°C25/33°C
29°C26/32°C
28°C26/32°C
28°C25/32°C
43AQI
33AQI
43AQI
33AQI
2026 Days Vs Air Quality
Haruecho, Ichikawa, Chiba, Japan
86%
191
14%
30
Total number of days with different AQI categories in last 221 days in 2026 (144 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 221 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
Haruecho, Ichikawa, Chiba, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
19AQI (US)
14AQI (US)
20AQI (US)
44AQI (US)
17AQI (US)
26AQI (US)
41AQI (US)
13AQI (US)
37AQI (US)
29AQI (US)
16AQI (US)
36AQI (US)
18AQI (US)
24AQI (US)
46AQI (US)
50AQI (US)
21AQI (US)
39AQI (US)
43AQI (US)
11AQI (US)
24AQI (US)
37AQI (US)
39AQI (US)
42AQI (US)
22AQI (US)
43AQI (US)
23AQI (US)
16AQI (US)
28AQI (US)
36AQI (US)
38AQI (US)
46AQI (US)
25AQI (US)
38AQI (US)
61AQI (US)
62AQI (US)
12AQI (US)
11AQI (US)
32AQI (US)
38AQI (US)
55AQI (US)
26AQI (US)
44AQI (US)
60AQI (US)
60AQI (US)
44AQI (US)
14AQI (US)
38AQI (US)
18AQI (US)
22AQI (US)
46AQI (US)
51AQI (US)
35AQI (US)
39AQI (US)
33AQI (US)
21AQI (US)
34AQI (US)
24AQI (US)
19AQI (US)
60AQI (US)
41AQI (US)
41AQI (US)
11AQI (US)
26AQI (US)
42AQI (US)
31AQI (US)
41AQI (US)
57AQI (US)
54AQI (US)
64AQI (US)
36AQI (US)
44AQI (US)
55AQI (US)
46AQI (US)
46AQI (US)
49AQI (US)
36AQI (US)
31AQI (US)
52AQI (US)
45AQI (US)
45AQI (US)
41AQI (US)
60AQI (US)
27AQI (US)
29AQI (US)
50AQI (US)
54AQI (US)
55AQI (US)
22AQI (US)
26AQI (US)
32AQI (US)
44AQI (US)
46AQI (US)
38AQI (US)
29AQI (US)
26AQI (US)
21AQI (US)
29AQI (US)
48AQI (US)
49AQI (US)
33AQI (US)
42AQI (US)
39AQI (US)
36AQI (US)
34AQI (US)
34AQI (US)
30AQI (US)
33AQI (US)
33AQI (US)
37AQI (US)
45AQI (US)
39AQI (US)
32AQI (US)
45AQI (US)
52AQI (US)
49AQI (US)
42AQI (US)
39AQI (US)
35AQI (US)
46AQI (US)
48AQI (US)
51AQI (US)
36AQI (US)
21AQI (US)
29AQI (US)
29AQI (US)
25AQI (US)
24AQI (US)
29AQI (US)
28AQI (US)
32AQI (US)
38AQI (US)
33AQI (US)
35AQI (US)
85AQI (US)
69AQI (US)
53AQI (US)
49AQI (US)
62AQI (US)
59AQI (US)
62AQI (US)
53AQI (US)
58AQI (US)
47AQI (US)
39AQI (US)
24AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
27AQI (US)
29AQI (US)
21AQI (US)
14AQI (US)
22AQI (US)
21AQI (US)
21AQI (US)
22AQI (US)
20AQI (US)
23AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
39AQI (US)
43AQI (US)
12AQI (US)
23AQI (US)
23AQI (US)
24AQI (US)
26AQI (US)
22AQI (US)
20AQI (US)
19AQI (US)
20AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
22AQI (US)
27AQI (US)
24AQI (US)
24AQI (US)
39AQI (US)
20AQI (US)
18AQI (US)
37AQI (US)
21AQI (US)
26AQI (US)
26AQI (US)
24AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
27AQI (US)
38AQI (US)
45AQI (US)
43AQI (US)
71AQI (US)
53AQI (US)
19AQI (US)
17AQI (US)
33AQI (US)
49AQI (US)
66AQI (US)
62AQI (US)
39AQI (US)
37AQI (US)
29AQI (US)
24AQI (US)
32AQI (US)
34AQI (US)
36AQI (US)
48AQI (US)
60AQI (US)
50AQI (US)
17AQI (US)
28AQI (US)
24AQI (US)
26AQI (US)
32AQI (US)
45AQI (US)
33AQI (US)
29AQI (US)
37AQI (US)
42AQI (US)
37AQI (US)
41AQI (US)
24AQI (US)
35AQI (US)
35AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March42AQI (US)
Lowest AQI (US) recorded in
June24AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
November48AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202436AQI (US)
Highest AQI (US) recorded in
April45AQI (US)
Lowest AQI (US) recorded in
December25AQI (US)
202339AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202231AQI (US)
Highest AQI (US) recorded in
November38AQI (US)
Lowest AQI (US) recorded in
August22AQI (US)
202122AQI (US)
Highest AQI (US) recorded in
June36AQI (US)
Lowest AQI (US) recorded in
February11AQI (US)
202015AQI (US)
Highest AQI (US) recorded in
June20AQI (US)
Lowest AQI (US) recorded in
September11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Haruecho's annual 2026 AQI (US) (35) shows an average percentage change of 32.04% (worsened AQI (US)) compared to previous years: 2020 (15), 2021 (22), 2022 (31), 2023 (39), 2024 (36), 2025 (35).