Ritto, Shiga, 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
Ritto, Shiga, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (31st August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 16 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Ritto, Shiga, Japan
78%
165
22%
47
Total number of days with different AQI categories in last 213 days in 2025 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 78%
Health Risk Level:
Low
In 2025, 78% of 213 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
Ritto, Shiga, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
30AQI
29AQI
28AQI
28AQI
32AQI
33AQI
28AQI
28AQI
25AQI
24AQI
34AQI
26AQI
44AQI
37AQI
34AQI
30AQI
28AQI
33AQI
38AQI
35AQI
40AQI
60AQI
52AQI
42AQI
36AQI
29AQI
31AQI
30AQI
35AQI
69AQI
66AQI
46AQI
47AQI
39AQI
39AQI
32AQI
35AQI
31AQI
30AQI
30AQI
30AQI
33AQI
31AQI
32AQI
30AQI
36AQI
37AQI
31AQI
31AQI
29AQI
30AQI
30AQI
30AQI
32AQI
33AQI
41AQI
49AQI
57AQI
59AQI
69AQI
44AQI
40AQI
31AQI
36AQI
33AQI
35AQI
35AQI
35AQI
33AQI
32AQI
45AQI
37AQI
36AQI
22AQI
24AQI
23AQI
22AQI
35AQI
51AQI
54AQI
70AQI
69AQI
79AQI
79AQI
84AQI
45AQI
46AQI
34AQI
35AQI
31AQI
28AQI
22AQI
24AQI
32AQI
34AQI
43AQI
43AQI
42AQI
53AQI
49AQI
50AQI
31AQI
46AQI
24AQI
44AQI
47AQI
56AQI
60AQI
53AQI
40AQI
46AQI
23AQI
25AQI
60AQI
51AQI
59AQI
44AQI
53AQI
60AQI
54AQI
38AQI
44AQI
37AQI
42AQI
25AQI
28AQI
29AQI
27AQI
27AQI
29AQI
42AQI
50AQI
57AQI
55AQI
54AQI
36AQI
48AQI
50AQI
66AQI
60AQI
36AQI
52AQI
37AQI
27AQI
28AQI
28AQI
27AQI
36AQI
33AQI
30AQI
35AQI
46AQI
25AQI
40AQI
37AQI
47AQI
51AQI
63AQI
42AQI
29AQI
32AQI
40AQI
46AQI
30AQI
26AQI
39AQI
36AQI
48AQI
53AQI
56AQI
50AQI
45AQI
38AQI
32AQI
32AQI
32AQI
47AQI
38AQI
48AQI
56AQI
64AQI
96AQI
81AQI
89AQI
92AQI
77AQI
65AQI
79AQI
85AQI
62AQI
51AQI
52AQI
50AQI
38AQI
46AQI
46AQI
33AQI
33AQI
31AQI
29AQI
33AQI
35AQI
39AQI
39AQI
29AQI
25AQI
24AQI
28AQI
38AQI
41AQI
34AQI
35AQI
36AQI
44AQI
42AQI
40AQI
41AQI
50AQI
No. of days
202541AQI
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
January35AQI
202433AQI
Highest AQI recorded in
April43AQI
Lowest AQI recorded in
August27AQI
202338AQI
Highest AQI recorded in
April48AQI
Lowest AQI recorded in
August29AQI
202236AQI
Highest AQI recorded in
March47AQI
Lowest AQI recorded in
October29AQI
202133AQI
Highest AQI recorded in
June39AQI
Lowest AQI recorded in
August27AQI
202031AQI
Highest AQI recorded in
August50AQI
Lowest AQI recorded in
July21AQI
Most & Least Polluted Years Over the Last 6 Years
Ritto's annual 2025 AQI (41) shows an average percentage change of 21.7% (worsened AQI) compared to previous years: 2020 (31), 2021 (33), 2022 (36), 2023 (38), 2024 (33).
