Kajomachi, Hanamaki Onsen, Iwate, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Kajomachi, Hanamaki Onsen, Iwate, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (14th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 70 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 13th Feb - 14th Feb 2026
Kajomachi, Hanamaki Onsen, Iwate, Japan
6 AM13th Feb 2026
4 PM
5 AM14th Feb 2026
17AQI
8AQI
72AQI
21AQI
In the last 24 hours,
Kajomachi's AQI reached its highest point of 72 at 12 AM during the Night, while the lowest point, 8, was recorded at 6 AM during the Day between 13th Feb and 14th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Kajomachi, Hanamaki Onsen, Iwate, Japan
0°C-2/1°C
-2°C-6/0°C
-3°C-4/-1°C
-3°C-8/1°C
-4°C-7/0°C
-6°C-10/-3°C
-5°C-10/-3°C
-5°C-7/-2°C
-5°C-8/0°C
-6°C-8/-3°C
-5°C-9/-1°C
-2°C-6/2°C
-4°C-8/-1°C
-5°C-9/-1°C
-5°C-9/-1°C
-5°C-10/0°C
-4°C-7/0°C
-4°C-7/0°C
-4°C-10/1°C
0°C-5/4°C
1°C0/3°C
-1°C-6/2°C
-5°C-8/-3°C
-6°C-10/-2°C
-4°C-7/-1°C
-1°C-5/5°C
0°C-3/4°C
-1°C-3/3°C
0°C-5/5°C
3°C-1/8°C
44AQI
28AQI
42AQI
27AQI
2026 Days Vs Air Quality
Kajomachi, Hanamaki Onsen, Iwate, Japan
93%
42
7%
3
Total number of days with different AQI categories in last 46 days in 2026 (319 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 46 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
Kajomachi, Hanamaki Onsen, Iwate, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
13AQI (US)
15AQI (US)
24AQI (US)
18AQI (US)
15AQI (US)
20AQI (US)
26AQI (US)
25AQI (US)
19AQI (US)
22AQI (US)
23AQI (US)
13AQI (US)
16AQI (US)
16AQI (US)
21AQI (US)
33AQI (US)
30AQI (US)
18AQI (US)
26AQI (US)
26AQI (US)
14AQI (US)
18AQI (US)
34AQI (US)
36AQI (US)
40AQI (US)
33AQI (US)
34AQI (US)
19AQI (US)
19AQI (US)
37AQI (US)
42AQI (US)
35AQI (US)
34AQI (US)
32AQI (US)
33AQI (US)
45AQI (US)
22AQI (US)
10AQI (US)
19AQI (US)
45AQI (US)
55AQI (US)
72AQI (US)
25AQI (US)
16AQI (US)
70AQI (US)
24AQI (US)
37AQI (US)
No. of days
202628AQI (US)
Highest AQI (US) recorded in
February37AQI (US)
Lowest AQI (US) recorded in
January24AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
July43AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202434AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
December26AQI (US)
202336AQI (US)
Highest AQI (US) recorded in
April45AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202234AQI (US)
Highest AQI (US) recorded in
May41AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202132AQI (US)
Highest AQI (US) recorded in
June37AQI (US)
Lowest AQI (US) recorded in
April27AQI (US)
202029AQI (US)
Highest AQI (US) recorded in
August40AQI (US)
Lowest AQI (US) recorded in
July20AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kajomachi's annual 2026 AQI (US) (28) shows an average percentage change of -15.6% (improved AQI (US)) compared to previous years: 2020 (29), 2021 (32), 2022 (34), 2023 (36), 2024 (34), 2025 (35).