Shimizu Kaji, Sendai, Miyagi, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Shimizu Kaji, Sendai, Miyagi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 53 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Shimizu Kaji, Sendai, Miyagi, Japan
5 AM7th Oct 2025
5 PM
4 AM8th Oct 2025
AQI
AQI
64AQI
26AQI
In the last 24 hours,
Shimizu Kaji's AQI reached its highest point of 64 at 12 AM during the Night, while the lowest point, undefined, was recorded at 7 PM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Shimizu Kaji, Sendai, Miyagi, Japan
24°C23/26°C
24°C23/27°C
23°C20/27°C
22°C20/23°C
22°C21/24°C
22°C21/23°C
24°C21/29°C
23°C22/26°C
25°C21/30°C
26°C22/31°C
23°C20/25°C
20°C17/23°C
20°C19/22°C
21°C17/24°C
19°C15/23°C
19°C16/22°C
19°C17/22°C
19°C16/22°C
22°C18/27°C
21°C17/26°C
21°C16/25°C
22°C18/26°C
20°C16/24°C
18°C17/20°C
20°C16/25°C
20°C16/25°C
20°C17/23°C
21°C19/25°C
21°C18/25°C
18°C17/19°C
--°C/°C
38AQI
33AQI
35AQI
35AQI
2025 Days Vs Air Quality
Shimizu Kaji, Sendai, Miyagi, Japan
84%
235
16%
45
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2025, 84% of 281 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
Shimizu Kaji, Sendai, Miyagi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
28AQI
27AQI
25AQI
23AQI
24AQI
34AQI
23AQI
25AQI
23AQI
20AQI
22AQI
23AQI
24AQI
29AQI
23AQI
24AQI
22AQI
25AQI
31AQI
37AQI
48AQI
37AQI
42AQI
39AQI
33AQI
28AQI
29AQI
28AQI
22AQI
23AQI
24AQI
27AQI
29AQI
27AQI
26AQI
21AQI
22AQI
28AQI
20AQI
22AQI
24AQI
23AQI
30AQI
26AQI
27AQI
23AQI
29AQI
39AQI
25AQI
26AQI
22AQI
22AQI
21AQI
20AQI
22AQI
27AQI
36AQI
35AQI
49AQI
47AQI
58AQI
34AQI
35AQI
23AQI
22AQI
22AQI
31AQI
27AQI
37AQI
38AQI
46AQI
50AQI
41AQI
43AQI
28AQI
22AQI
25AQI
24AQI
29AQI
49AQI
54AQI
40AQI
39AQI
60AQI
58AQI
60AQI
50AQI
39AQI
38AQI
38AQI
34AQI
27AQI
24AQI
23AQI
28AQI
35AQI
30AQI
41AQI
33AQI
43AQI
46AQI
36AQI
28AQI
24AQI
25AQI
24AQI
46AQI
49AQI
64AQI
55AQI
44AQI
46AQI
44AQI
42AQI
36AQI
53AQI
52AQI
52AQI
30AQI
29AQI
26AQI
27AQI
32AQI
32AQI
35AQI
29AQI
28AQI
37AQI
35AQI
29AQI
24AQI
27AQI
39AQI
46AQI
41AQI
48AQI
38AQI
45AQI
39AQI
51AQI
54AQI
44AQI
42AQI
36AQI
26AQI
27AQI
29AQI
29AQI
33AQI
28AQI
21AQI
21AQI
35AQI
37AQI
30AQI
35AQI
44AQI
55AQI
55AQI
57AQI
46AQI
40AQI
37AQI
33AQI
34AQI
28AQI
26AQI
28AQI
29AQI
34AQI
32AQI
30AQI
33AQI
39AQI
32AQI
32AQI
29AQI
32AQI
32AQI
35AQI
40AQI
43AQI
44AQI
52AQI
54AQI
52AQI
56AQI
56AQI
56AQI
64AQI
54AQI
50AQI
48AQI
50AQI
47AQI
49AQI
52AQI
48AQI
51AQI
46AQI
50AQI
51AQI
51AQI
53AQI
56AQI
57AQI
57AQI
57AQI
54AQI
54AQI
50AQI
45AQI
35AQI
39AQI
42AQI
47AQI
49AQI
42AQI
37AQI
33AQI
34AQI
37AQI
35AQI
36AQI
36AQI
39AQI
37AQI
37AQI
43AQI
44AQI
45AQI
48AQI
48AQI
51AQI
50AQI
55AQI
54AQI
54AQI
45AQI
41AQI
44AQI
51AQI
51AQI
50AQI
43AQI
39AQI
30AQI
27AQI
36AQI
35AQI
40AQI
50AQI
46AQI
42AQI
39AQI
33AQI
38AQI
38AQI
35AQI
40AQI
28AQI
28AQI
27AQI
24AQI
26AQI
25AQI
25AQI
30AQI
22AQI
18AQI
23AQI
21AQI
22AQI
22AQI
36AQI
54AQI
65AQI
59AQI
52AQI
53AQI
28AQI
27AQI
39AQI
38AQI
35AQI
36AQI
52AQI
43AQI
33AQI
49AQI
No. of days
202537AQI
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
February27AQI
202429AQI
Highest AQI recorded in
April45AQI
Lowest AQI recorded in
January21AQI
202332AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
October22AQI
202229AQI
Highest AQI recorded in
August55AQI
Lowest AQI recorded in
December16AQI
202130AQI
Highest AQI recorded in
March41AQI
Lowest AQI recorded in
October25AQI
202031AQI
Highest AQI recorded in
August44AQI
Lowest AQI recorded in
July23AQI
Most & Least Polluted Years Over the Last 6 Years
Shimizu Kaji's annual 2025 AQI (37) shows an average percentage change of 22.2% (worsened AQI) compared to previous years: 2020 (31), 2021 (30), 2022 (29), 2023 (32), 2024 (29).