Mitsui, Hikari, Yamaguchi, 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
Mitsui, Hikari, Yamaguchi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 33 of Good air quality, showing improvement over 2025 and 2023 on the same day.
Day & Night AQI Trend: 1st Aug - 2nd Aug 2026
Mitsui, Hikari, Yamaguchi, Japan
5 AM1st Aug 2026
7 PM
4 AM2nd Aug 2026
33AQI
27AQI
31AQI
27AQI
In the last 24 hours,
Mitsui's AQI reached its highest point of 33 at 6 PM during the Day, while the lowest point, 27, was recorded at 3 AM during the Night between 1st Aug and 2nd Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Mitsui, Hikari, Yamaguchi, Japan
22°C21/23°C
23°C22/24°C
24°C23/27°C
25°C22/28°C
25°C23/28°C
24°C22/27°C
24°C21/28°C
25°C22/29°C
26°C23/29°C
27°C24/32°C
27°C24/31°C
26°C23/30°C
27°C24/32°C
26°C23/29°C
26°C24/30°C
27°C24/30°C
27°C24/30°C
27°C24/31°C
28°C24/32°C
28°C24/32°C
28°C24/32°C
28°C24/32°C
28°C23/32°C
28°C25/32°C
28°C24/33°C
26°C23/30°C
28°C24/33°C
27°C23/33°C
28°C23/34°C
29°C25/33°C
34AQI
30AQI
33AQI
31AQI
2026 Days Vs Air Quality
Mitsui, Hikari, Yamaguchi, Japan
80%
172
20%
42
Total number of days with different AQI categories in last 214 days in 2026 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 214 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
Mitsui, Hikari, Yamaguchi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI (US)
31AQI (US)
34AQI (US)
45AQI (US)
53AQI (US)
29AQI (US)
41AQI (US)
38AQI (US)
29AQI (US)
38AQI (US)
31AQI (US)
25AQI (US)
33AQI (US)
36AQI (US)
47AQI (US)
68AQI (US)
76AQI (US)
67AQI (US)
75AQI (US)
38AQI (US)
17AQI (US)
26AQI (US)
38AQI (US)
51AQI (US)
17AQI (US)
22AQI (US)
43AQI (US)
34AQI (US)
40AQI (US)
24AQI (US)
27AQI (US)
46AQI (US)
42AQI (US)
29AQI (US)
36AQI (US)
40AQI (US)
44AQI (US)
26AQI (US)
28AQI (US)
38AQI (US)
40AQI (US)
23AQI (US)
35AQI (US)
58AQI (US)
65AQI (US)
49AQI (US)
64AQI (US)
23AQI (US)
30AQI (US)
49AQI (US)
40AQI (US)
68AQI (US)
39AQI (US)
51AQI (US)
34AQI (US)
14AQI (US)
12AQI (US)
51AQI (US)
43AQI (US)
38AQI (US)
49AQI (US)
10AQI (US)
43AQI (US)
54AQI (US)
52AQI (US)
53AQI (US)
47AQI (US)
52AQI (US)
59AQI (US)
57AQI (US)
64AQI (US)
42AQI (US)
45AQI (US)
61AQI (US)
61AQI (US)
51AQI (US)
58AQI (US)
52AQI (US)
50AQI (US)
41AQI (US)
49AQI (US)
31AQI (US)
49AQI (US)
62AQI (US)
35AQI (US)
49AQI (US)
72AQI (US)
71AQI (US)
53AQI (US)
14AQI (US)
12AQI (US)
54AQI (US)
50AQI (US)
43AQI (US)
41AQI (US)
47AQI (US)
22AQI (US)
24AQI (US)
33AQI (US)
45AQI (US)
31AQI (US)
43AQI (US)
43AQI (US)
35AQI (US)
34AQI (US)
20AQI (US)
41AQI (US)
28AQI (US)
38AQI (US)
40AQI (US)
42AQI (US)
44AQI (US)
14AQI (US)
26AQI (US)
35AQI (US)
28AQI (US)
37AQI (US)
52AQI (US)
41AQI (US)
27AQI (US)
50AQI (US)
52AQI (US)
36AQI (US)
24AQI (US)
24AQI (US)
29AQI (US)
30AQI (US)
26AQI (US)
27AQI (US)
30AQI (US)
31AQI (US)
30AQI (US)
39AQI (US)
33AQI (US)
34AQI (US)
78AQI (US)
64AQI (US)
53AQI (US)
46AQI (US)
61AQI (US)
65AQI (US)
70AQI (US)
63AQI (US)
63AQI (US)
55AQI (US)
41AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
22AQI (US)
27AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
25AQI (US)
30AQI (US)
42AQI (US)
29AQI (US)
20AQI (US)
16AQI (US)
22AQI (US)
20AQI (US)
25AQI (US)
30AQI (US)
27AQI (US)
28AQI (US)
27AQI (US)
42AQI (US)
31AQI (US)
16AQI (US)
24AQI (US)
25AQI (US)
22AQI (US)
20AQI (US)
25AQI (US)
24AQI (US)
23AQI (US)
26AQI (US)
26AQI (US)
27AQI (US)
39AQI (US)
32AQI (US)
26AQI (US)
27AQI (US)
32AQI (US)
49AQI (US)
46AQI (US)
46AQI (US)
62AQI (US)
56AQI (US)
31AQI (US)
38AQI (US)
31AQI (US)
23AQI (US)
30AQI (US)
26AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
28AQI (US)
33AQI (US)
39AQI (US)
40AQI (US)
49AQI (US)
36AQI (US)
41AQI (US)
26AQI (US)
31AQI (US)
31AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
March49AQI (US)
Lowest AQI (US) recorded in
June26AQI (US)
202545AQI (US)
Highest AQI (US) recorded in
November54AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202437AQI (US)
Highest AQI (US) recorded in
April52AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
April56AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
May55AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
June50AQI (US)
Lowest AQI (US) recorded in
April32AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
June44AQI (US)
Lowest AQI (US) recorded in
October30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Mitsui's annual 2026 AQI (US) (37) shows an average percentage change of -6.8% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (39), 2022 (43), 2023 (41), 2024 (37), 2025 (45).