Kariyama, Natori Shi, 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
Kariyama, Natori Shi, Miyagi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (2nd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Oct - 3rd Oct 2025
Kariyama, Natori Shi, Miyagi, Japan
5 AM2nd Oct 2025
5 PM
4 AM3rd Oct 2025
44AQI
32AQI
52AQI
38AQI
In the last 24 hours,
Kariyama's AQI reached its highest point of 52 at 12 AM during the Night, while the lowest point, 32, was recorded at 5 PM during the Day between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Kariyama, Natori Shi, Miyagi, Japan
27°C23/32°C
24°C22/26°C
23°C21/25°C
24°C20/29°C
25°C20/31°C
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
--°C/°C
31AQI
26AQI
32AQI
28AQI
2025 Days Vs Air Quality
Kariyama, Natori Shi, Miyagi, Japan
87%
239
13%
36
Total number of days with different AQI categories in last 276 days in 2025 (89 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2025, 87% of 276 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
Kariyama, Natori Shi, Miyagi, Japan
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI
26AQI
23AQI
24AQI
25AQI
35AQI
25AQI
25AQI
22AQI
19AQI
21AQI
22AQI
24AQI
32AQI
25AQI
27AQI
23AQI
26AQI
32AQI
40AQI
48AQI
37AQI
41AQI
39AQI
33AQI
29AQI
29AQI
29AQI
23AQI
25AQI
25AQI
28AQI
28AQI
28AQI
27AQI
23AQI
23AQI
28AQI
21AQI
24AQI
24AQI
24AQI
29AQI
26AQI
27AQI
23AQI
29AQI
39AQI
25AQI
28AQI
23AQI
25AQI
21AQI
22AQI
23AQI
26AQI
38AQI
35AQI
51AQI
47AQI
58AQI
35AQI
35AQI
23AQI
24AQI
24AQI
31AQI
27AQI
38AQI
39AQI
45AQI
50AQI
41AQI
44AQI
28AQI
24AQI
29AQI
24AQI
31AQI
49AQI
54AQI
39AQI
38AQI
55AQI
56AQI
59AQI
49AQI
38AQI
37AQI
37AQI
31AQI
25AQI
22AQI
20AQI
25AQI
33AQI
27AQI
40AQI
32AQI
44AQI
46AQI
38AQI
26AQI
22AQI
24AQI
23AQI
45AQI
49AQI
64AQI
55AQI
45AQI
46AQI
45AQI
42AQI
36AQI
53AQI
52AQI
51AQI
30AQI
27AQI
24AQI
26AQI
32AQI
30AQI
34AQI
28AQI
27AQI
36AQI
35AQI
28AQI
24AQI
24AQI
38AQI
46AQI
41AQI
48AQI
39AQI
46AQI
42AQI
52AQI
55AQI
45AQI
44AQI
37AQI
25AQI
27AQI
30AQI
28AQI
34AQI
28AQI
19AQI
20AQI
34AQI
37AQI
31AQI
35AQI
43AQI
55AQI
56AQI
58AQI
46AQI
41AQI
38AQI
33AQI
36AQI
27AQI
24AQI
28AQI
34AQI
38AQI
32AQI
33AQI
31AQI
39AQI
34AQI
34AQI
30AQI
32AQI
32AQI
35AQI
41AQI
44AQI
47AQI
54AQI
54AQI
52AQI
57AQI
57AQI
59AQI
69AQI
57AQI
51AQI
48AQI
50AQI
45AQI
49AQI
53AQI
50AQI
53AQI
47AQI
49AQI
49AQI
50AQI
52AQI
53AQI
56AQI
57AQI
57AQI
54AQI
54AQI
50AQI
45AQI
34AQI
37AQI
39AQI
45AQI
43AQI
41AQI
34AQI
31AQI
32AQI
34AQI
32AQI
32AQI
30AQI
33AQI
32AQI
31AQI
36AQI
38AQI
40AQI
46AQI
45AQI
48AQI
48AQI
51AQI
45AQI
52AQI
43AQI
38AQI
40AQI
44AQI
41AQI
45AQI
38AQI
36AQI
29AQI
26AQI
29AQI
29AQI
34AQI
38AQI
36AQI
34AQI
34AQI
30AQI
34AQI
35AQI
35AQI
37AQI
25AQI
25AQI
24AQI
22AQI
23AQI
22AQI
23AQI
33AQI
26AQI
18AQI
25AQI
21AQI
22AQI
22AQI
30AQI
29AQI
27AQI
39AQI
37AQI
35AQI
36AQI
52AQI
39AQI
30AQI
26AQI
No. of days
202536AQI
Highest AQI recorded in
July52AQI
Lowest AQI recorded in
October26AQI
202431AQI
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
January20AQI
202332AQI
Highest AQI recorded in
April42AQI
Lowest AQI recorded in
December22AQI
202229AQI
Highest AQI recorded in
August43AQI
Lowest AQI recorded in
December18AQI
202128AQI
Highest AQI recorded in
June37AQI
Lowest AQI recorded in
January21AQI
202027AQI
Highest AQI recorded in
August38AQI
Lowest AQI recorded in
December20AQI
Most & Least Polluted Years Over the Last 6 Years
Kariyama's annual 2025 AQI (36) shows an average percentage change of 23.1% (worsened AQI) compared to previous years: 2020 (27), 2021 (28), 2022 (29), 2023 (32), 2024 (31).