Takazu, Yachiyo, 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
Takazu, Yachiyo, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 47 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025
Takazu, Yachiyo, Chiba, Japan
4 AM21st Aug 2025
6 PM
3 AM22nd Aug 2025
AQI
AQI
62AQI
44AQI
In the last 24 hours,
Takazu's AQI reached its highest point of 62 at 2 PM during the Night, while the lowest point, 44, was recorded at 2 AM during the Night between 21st Aug and 22nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Takazu, Yachiyo, Chiba, Japan
28°C26/32°C
29°C26/33°C
29°C26/32°C
29°C27/32°C
28°C27/31°C
29°C26/34°C
30°C25/36°C
29°C25/34°C
28°C24/32°C
28°C25/31°C
29°C26/33°C
30°C27/35°C
29°C28/33°C
30°C28/34°C
31°C28/35°C
30°C28/33°C
29°C24/33°C
28°C25/32°C
27°C25/28°C
27°C27/29°C
28°C26/30°C
27°C25/31°C
27°C24/32°C
28°C26/31°C
28°C26/31°C
28°C26/31°C
30°C26/35°C
29°C26/32°C
29°C27/32°C
--°C/°C
--°C/°C
43AQI
38AQI
40AQI
36AQI
2025 Days Vs Air Quality
Takazu, Yachiyo, Chiba, Japan
90%
208
10%
24
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 233 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Takazu, Yachiyo, Chiba, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
34AQI
31AQI
25AQI
29AQI
37AQI
52AQI
31AQI
35AQI
29AQI
30AQI
32AQI
34AQI
30AQI
43AQI
34AQI
35AQI
26AQI
36AQI
55AQI
41AQI
45AQI
41AQI
53AQI
46AQI
42AQI
38AQI
38AQI
38AQI
31AQI
33AQI
30AQI
39AQI
34AQI
39AQI
32AQI
34AQI
30AQI
29AQI
30AQI
30AQI
30AQI
32AQI
32AQI
41AQI
30AQI
43AQI
39AQI
40AQI
33AQI
32AQI
31AQI
31AQI
32AQI
33AQI
34AQI
35AQI
38AQI
40AQI
56AQI
48AQI
62AQI
39AQI
41AQI
26AQI
33AQI
32AQI
34AQI
33AQI
35AQI
41AQI
43AQI
39AQI
39AQI
33AQI
25AQI
20AQI
23AQI
17AQI
23AQI
42AQI
48AQI
55AQI
52AQI
66AQI
79AQI
70AQI
47AQI
39AQI
42AQI
33AQI
28AQI
22AQI
20AQI
21AQI
22AQI
25AQI
30AQI
37AQI
26AQI
47AQI
40AQI
37AQI
28AQI
40AQI
27AQI
34AQI
46AQI
52AQI
63AQI
51AQI
44AQI
45AQI
29AQI
38AQI
38AQI
46AQI
48AQI
45AQI
34AQI
45AQI
40AQI
28AQI
31AQI
37AQI
36AQI
28AQI
24AQI
27AQI
29AQI
24AQI
30AQI
25AQI
35AQI
34AQI
39AQI
42AQI
28AQI
46AQI
41AQI
63AQI
43AQI
44AQI
39AQI
38AQI
30AQI
27AQI
25AQI
24AQI
27AQI
25AQI
16AQI
20AQI
28AQI
31AQI
33AQI
39AQI
46AQI
49AQI
56AQI
43AQI
35AQI
29AQI
39AQI
36AQI
33AQI
40AQI
41AQI
51AQI
42AQI
40AQI
34AQI
32AQI
24AQI
26AQI
24AQI
21AQI
23AQI
33AQI
30AQI
35AQI
40AQI
41AQI
46AQI
42AQI
45AQI
53AQI
70AQI
77AQI
78AQI
72AQI
53AQI
46AQI
49AQI
45AQI
38AQI
37AQI
37AQI
40AQI
39AQI
32AQI
31AQI
34AQI
34AQI
37AQI
36AQI
32AQI
31AQI
29AQI
36AQI
32AQI
31AQI
30AQI
33AQI
41AQI
44AQI
61AQI
50AQI
51AQI
50AQI
47AQI
47AQI
38AQI
39AQI
35AQI
33AQI
34AQI
35AQI
36AQI
39AQI
43AQI
45AQI
47AQI
37AQI
35AQI
41AQI
37AQI
33AQI
35AQI
43AQI
42AQI
No. of days
202538AQI
Highest AQI recorded in
July43AQI
Lowest AQI recorded in
May33AQI
202438AQI
Highest AQI recorded in
July50AQI
Lowest AQI recorded in
September29AQI
202339AQI
Highest AQI recorded in
December46AQI
Lowest AQI recorded in
August25AQI
202239AQI
Highest AQI recorded in
February44AQI
Lowest AQI recorded in
August29AQI
202137AQI
Highest AQI recorded in
January49AQI
Lowest AQI recorded in
August29AQI
202035AQI
Highest AQI recorded in
December48AQI
Lowest AQI recorded in
September23AQI
Most & Least Polluted Years Over the Last 6 Years
Takazu's annual 2025 AQI (38) shows an average percentage change of 0.3% (worsened AQI) compared to previous years: 2020 (35), 2021 (37), 2022 (39), 2023 (39), 2024 (38).