Momoyamacho, Obu, Aichi, 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
Momoyamacho, Obu, Aichi, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 18 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Feb - 7th Feb 2026
Momoyamacho, Obu, Aichi, Japan
6 AM6th Feb 2026
5 PM
5 AM7th Feb 2026
86AQI
53AQI
48AQI
19AQI
In the last 24 hours,
Momoyamacho's AQI reached its highest point of 86 at 11 AM during the Day, while the lowest point, 19, was recorded at 3 AM during the Night between 6th Feb and 7th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Momoyamacho, Obu, Aichi, Japan
4°C1/8°C
7°C3/10°C
5°C1/7°C
3°C1/6°C
6°C3/10°C
5°C3/8°C
6°C3/9°C
10°C6/14°C
9°C5/15°C
8°C5/12°C
9°C4/14°C
7°C2/11°C
3°C1/6°C
2°C1/4°C
3°C0/6°C
5°C3/8°C
3°C1/5°C
3°C0/6°C
5°C2/10°C
5°C2/8°C
4°C1/7°C
3°C1/6°C
3°C1/7°C
4°C1/8°C
5°C2/9°C
5°C2/8°C
6°C2/10°C
8°C4/12°C
9°C6/13°C
6°C3/8°C
47AQI
35AQI
44AQI
34AQI
2026 Days Vs Air Quality
Momoyamacho, Obu, Aichi, Japan
84%
32
16%
6
Total number of days with different AQI categories in last 39 days in 2026 (326 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 39 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
Momoyamacho, Obu, Aichi, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
12AQI (US)
12AQI (US)
11AQI (US)
23AQI (US)
47AQI (US)
12AQI (US)
36AQI (US)
32AQI (US)
15AQI (US)
37AQI (US)
39AQI (US)
20AQI (US)
45AQI (US)
22AQI (US)
49AQI (US)
64AQI (US)
64AQI (US)
60AQI (US)
72AQI (US)
32AQI (US)
14AQI (US)
16AQI (US)
39AQI (US)
47AQI (US)
44AQI (US)
15AQI (US)
42AQI (US)
34AQI (US)
32AQI (US)
32AQI (US)
35AQI (US)
36AQI (US)
45AQI (US)
30AQI (US)
39AQI (US)
62AQI (US)
59AQI (US)
18AQI (US)
34AQI (US)
41AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
February41AQI (US)
Lowest AQI (US) recorded in
January34AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
July48AQI (US)
Lowest AQI (US) recorded in
May22AQI (US)
202430AQI (US)
Highest AQI (US) recorded in
April36AQI (US)
Lowest AQI (US) recorded in
December26AQI (US)
202328AQI (US)
Highest AQI (US) recorded in
April36AQI (US)
Lowest AQI (US) recorded in
August18AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
April38AQI (US)
Lowest AQI (US) recorded in
August17AQI (US)
202125AQI (US)
Highest AQI (US) recorded in
June40AQI (US)
Lowest AQI (US) recorded in
January15AQI (US)
202016AQI (US)
Highest AQI (US) recorded in
August22AQI (US)
Lowest AQI (US) recorded in
December14AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Momoyamacho's annual 2026 AQI (US) (35) shows an average percentage change of 37.6% (worsened AQI (US)) compared to previous years: 2020 (16), 2021 (25), 2022 (30), 2023 (28), 2024 (30), 2025 (35).