Tsuyama, Okayama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Tsuyama, Okayama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 40 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Tsuyama, Okayama, Japan
67%
143
32%
68
0.4%
1
Total number of days with different AQI categories in last 213 days in 2025 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 67%
Health Risk Level:
Moderate
In 2025, 67% of 213 days were within WHO’s safe air quality limits, and 33% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Tsuyama, Okayama, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
36AQI
31AQI
31AQI
32AQI
41AQI
32AQI
34AQI
30AQI
27AQI
26AQI
31AQI
33AQI
47AQI
39AQI
36AQI
32AQI
33AQI
41AQI
41AQI
41AQI
57AQI
67AQI
60AQI
43AQI
38AQI
37AQI
35AQI
32AQI
42AQI
67AQI
68AQI
45AQI
47AQI
38AQI
38AQI
32AQI
35AQI
31AQI
30AQI
31AQI
30AQI
43AQI
31AQI
39AQI
29AQI
39AQI
36AQI
33AQI
32AQI
30AQI
30AQI
33AQI
33AQI
32AQI
35AQI
46AQI
51AQI
62AQI
66AQI
64AQI
45AQI
37AQI
33AQI
35AQI
34AQI
37AQI
39AQI
41AQI
41AQI
37AQI
47AQI
39AQI
40AQI
24AQI
32AQI
28AQI
34AQI
46AQI
56AQI
60AQI
68AQI
65AQI
74AQI
79AQI
72AQI
43AQI
46AQI
35AQI
38AQI
35AQI
32AQI
24AQI
33AQI
39AQI
47AQI
45AQI
52AQI
56AQI
60AQI
58AQI
53AQI
38AQI
47AQI
28AQI
47AQI
47AQI
59AQI
58AQI
53AQI
41AQI
47AQI
25AQI
31AQI
67AQI
51AQI
62AQI
51AQI
53AQI
59AQI
56AQI
41AQI
48AQI
37AQI
42AQI
30AQI
32AQI
31AQI
40AQI
32AQI
36AQI
49AQI
54AQI
60AQI
59AQI
55AQI
40AQI
48AQI
51AQI
66AQI
59AQI
39AQI
53AQI
39AQI
29AQI
33AQI
35AQI
39AQI
40AQI
40AQI
38AQI
44AQI
51AQI
31AQI
41AQI
43AQI
53AQI
56AQI
75AQI
57AQI
34AQI
48AQI
53AQI
55AQI
41AQI
37AQI
44AQI
41AQI
51AQI
54AQI
59AQI
56AQI
55AQI
45AQI
44AQI
43AQI
46AQI
55AQI
56AQI
58AQI
62AQI
68AQI
88AQI
83AQI
104AQI
87AQI
70AQI
68AQI
67AQI
82AQI
80AQI
64AQI
57AQI
51AQI
42AQI
50AQI
58AQI
39AQI
41AQI
37AQI
35AQI
36AQI
40AQI
41AQI
40AQI
29AQI
26AQI
26AQI
29AQI
40AQI
46AQI
40AQI
39AQI
38AQI
46AQI
47AQI
44AQI
50AQI
54AQI
No. of days
202545AQI
Highest AQI recorded in
July54AQI
Lowest AQI recorded in
February38AQI
202439AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
December32AQI
202342AQI
Highest AQI recorded in
April50AQI
Lowest AQI recorded in
August27AQI
202242AQI
Highest AQI recorded in
May51AQI
Lowest AQI recorded in
August27AQI
202138AQI
Highest AQI recorded in
June44AQI
Lowest AQI recorded in
August33AQI
202039AQI
Highest AQI recorded in
August56AQI
Lowest AQI recorded in
July28AQI
Most & Least Polluted Years Over the Last 6 Years
Tsuyama's annual 2025 AQI (45) shows an average percentage change of 13.4% (worsened AQI) compared to previous years: 2020 (39), 2021 (38), 2022 (42), 2023 (42), 2024 (39).
