Nagaura Ekimae, Kisarazu, Chiba, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Nagaura Ekimae, Kisarazu, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (30th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 18 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Nagaura Ekimae, Kisarazu, Chiba, Japan
5 AM30th Sep 2025
5 PM
4 AM1st Oct 2025
AQI
AQI
34AQI
13AQI
In the last 24 hours,
Nagaura Ekimae's AQI reached its highest point of 34 at 6 PM during the Night, while the lowest point, 13, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Nagaura Ekimae, Kisarazu, Chiba, Japan
29°C27/32°C
29°C27/32°C
29°C28/32°C
26°C25/27°C
25°C23/27°C
26°C23/30°C
27°C24/29°C
28°C26/31°C
28°C26/31°C
28°C27/30°C
27°C24/30°C
25°C24/28°C
27°C24/29°C
28°C27/29°C
27°C25/30°C
27°C25/30°C
28°C26/31°C
28°C23/31°C
22°C20/23°C
25°C22/27°C
26°C22/30°C
23°C21/25°C
23°C20/26°C
23°C20/26°C
24°C21/27°C
26°C23/30°C
24°C22/27°C
25°C23/27°C
26°C23/29°C
--°C/°C
--°C/°C
34AQI
31AQI
34AQI
32AQI
2025 Days Vs Air Quality
Nagaura Ekimae, Kisarazu, Chiba, Japan
90%
245
10%
28
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 273 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
Nagaura Ekimae, Kisarazu, Chiba, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
30AQI
25AQI
29AQI
35AQI
56AQI
31AQI
37AQI
29AQI
29AQI
28AQI
35AQI
28AQI
40AQI
36AQI
32AQI
31AQI
31AQI
54AQI
46AQI
44AQI
41AQI
51AQI
50AQI
39AQI
38AQI
38AQI
39AQI
33AQI
32AQI
28AQI
37AQI
31AQI
44AQI
30AQI
35AQI
30AQI
30AQI
30AQI
30AQI
29AQI
31AQI
32AQI
31AQI
28AQI
29AQI
37AQI
36AQI
31AQI
30AQI
30AQI
31AQI
31AQI
32AQI
33AQI
34AQI
35AQI
38AQI
51AQI
50AQI
63AQI
41AQI
39AQI
25AQI
32AQI
30AQI
33AQI
32AQI
33AQI
40AQI
50AQI
45AQI
40AQI
35AQI
27AQI
22AQI
23AQI
18AQI
23AQI
39AQI
46AQI
53AQI
53AQI
63AQI
80AQI
67AQI
50AQI
37AQI
42AQI
30AQI
32AQI
23AQI
21AQI
25AQI
22AQI
23AQI
31AQI
35AQI
26AQI
44AQI
37AQI
36AQI
24AQI
38AQI
28AQI
33AQI
44AQI
49AQI
58AQI
42AQI
42AQI
38AQI
28AQI
37AQI
33AQI
42AQI
44AQI
37AQI
34AQI
42AQI
40AQI
27AQI
30AQI
37AQI
34AQI
28AQI
24AQI
25AQI
27AQI
22AQI
28AQI
31AQI
35AQI
34AQI
36AQI
37AQI
25AQI
40AQI
40AQI
57AQI
36AQI
35AQI
37AQI
36AQI
29AQI
26AQI
25AQI
24AQI
26AQI
24AQI
16AQI
19AQI
26AQI
28AQI
29AQI
36AQI
42AQI
44AQI
50AQI
37AQI
30AQI
24AQI
37AQI
32AQI
30AQI
35AQI
36AQI
45AQI
41AQI
41AQI
35AQI
26AQI
15AQI
19AQI
19AQI
17AQI
17AQI
32AQI
29AQI
30AQI
36AQI
34AQI
39AQI
40AQI
38AQI
45AQI
67AQI
77AQI
76AQI
71AQI
52AQI
47AQI
51AQI
48AQI
39AQI
36AQI
36AQI
38AQI
33AQI
29AQI
28AQI
29AQI
27AQI
26AQI
30AQI
23AQI
24AQI
22AQI
25AQI
27AQI
27AQI
28AQI
34AQI
42AQI
44AQI
63AQI
51AQI
52AQI
50AQI
45AQI
47AQI
36AQI
37AQI
36AQI
33AQI
35AQI
36AQI
37AQI
39AQI
43AQI
45AQI
47AQI
50AQI
50AQI
47AQI
55AQI
55AQI
53AQI
51AQI
46AQI
51AQI
55AQI
52AQI
42AQI
37AQI
37AQI
42AQI
34AQI
29AQI
30AQI
40AQI
41AQI
36AQI
31AQI
31AQI
29AQI
36AQI
34AQI
33AQI
48AQI
48AQI
34AQI
33AQI
29AQI
27AQI
27AQI
26AQI
30AQI
42AQI
33AQI
24AQI
22AQI
18AQI
36AQI
33AQI
41AQI
35AQI
31AQI
31AQI
39AQI
46AQI
33AQI
No. of days
202536AQI
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
June31AQI
202436AQI
Highest AQI recorded in
July48AQI
Lowest AQI recorded in
September27AQI
202336AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
August27AQI
202236AQI
Highest AQI recorded in
March40AQI
Lowest AQI recorded in
July30AQI
202136AQI
Highest AQI recorded in
January41AQI
Lowest AQI recorded in
April31AQI
202035AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
September27AQI
Most & Least Polluted Years Over the Last 6 Years
Nagaura Ekimae's annual 2025 AQI (36) shows an average percentage change of 1.7% (worsened AQI) compared to previous years: 2020 (35), 2021 (36), 2022 (36), 2023 (36), 2024 (36).