Masaki, Ehime, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Masaki, Ehime, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 47 of Good air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Mar - 7th Mar 2026
Masaki, Ehime, Japan
6 AM6th Mar 2026
5 PM
5 AM7th Mar 2026
78AQI
36AQI
52AQI
14AQI
In the last 24 hours,
Masaki's AQI reached its highest point of 78 at 10 AM during the Day, while the lowest point, 14, was recorded at 9 PM during the Night between 6th Mar and 7th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Masaki, Ehime, Japan
10°C6/12°C
6°C3/8°C
0°C-1/1°C
1°C-3/5°C
6°C1/11°C
8°C6/9°C
7°C4/11°C
7°C3/11°C
9°C5/13°C
11°C9/14°C
10°C7/13°C
6°C4/9°C
7°C3/11°C
5°C1/7°C
8°C5/11°C
8°C5/13°C
12°C7/17°C
11°C8/13°C
11°C7/16°C
11°C10/12°C
12°C9/15°C
12°C10/14°C
10°C6/12°C
9°C5/14°C
11°C8/14°C
10°C8/11°C
8°C5/10°C
7°C3/12°C
9°C5/13°C
7°C5/8°C
43AQI
36AQI
37AQI
33AQI
2026 Days Vs Air Quality
Masaki, Ehime, Japan
94%
62
6%
4
Total number of days with different AQI categories in last 67 days in 2026 (298 days remaining)
Under WHO’s Safe Air Quality Limits: 94%
Health Risk Level:
Very Low
In 2026, 94% of 67 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
Masaki, Ehime, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
27AQI (US)
29AQI (US)
40AQI (US)
50AQI (US)
29AQI (US)
35AQI (US)
38AQI (US)
21AQI (US)
34AQI (US)
31AQI (US)
22AQI (US)
34AQI (US)
23AQI (US)
42AQI (US)
59AQI (US)
49AQI (US)
46AQI (US)
51AQI (US)
26AQI (US)
19AQI (US)
27AQI (US)
34AQI (US)
43AQI (US)
41AQI (US)
19AQI (US)
39AQI (US)
27AQI (US)
29AQI (US)
21AQI (US)
17AQI (US)
41AQI (US)
46AQI (US)
32AQI (US)
33AQI (US)
37AQI (US)
44AQI (US)
27AQI (US)
21AQI (US)
37AQI (US)
43AQI (US)
36AQI (US)
33AQI (US)
29AQI (US)
45AQI (US)
44AQI (US)
37AQI (US)
22AQI (US)
23AQI (US)
42AQI (US)
32AQI (US)
65AQI (US)
31AQI (US)
47AQI (US)
31AQI (US)
18AQI (US)
23AQI (US)
49AQI (US)
27AQI (US)
33AQI (US)
58AQI (US)
39AQI (US)
25AQI (US)
46AQI (US)
48AQI (US)
47AQI (US)
33AQI (US)
36AQI (US)
42AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March42AQI (US)
Lowest AQI (US) recorded in
January33AQI (US)
202546AQI (US)
Highest AQI (US) recorded in
October55AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
202442AQI (US)
Highest AQI (US) recorded in
April58AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
202348AQI (US)
Highest AQI (US) recorded in
June59AQI (US)
Lowest AQI (US) recorded in
February42AQI (US)
202246AQI (US)
Highest AQI (US) recorded in
August63AQI (US)
Lowest AQI (US) recorded in
January38AQI (US)
202141AQI (US)
Highest AQI (US) recorded in
June53AQI (US)
Lowest AQI (US) recorded in
January35AQI (US)
202041AQI (US)
Highest AQI (US) recorded in
August58AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Masaki's annual 2026 AQI (US) (35) shows an average percentage change of -19.9% (improved AQI (US)) compared to previous years: 2020 (41), 2021 (41), 2022 (46), 2023 (48), 2024 (42), 2025 (46).