Sosa, Chiba, 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
Sosa, Chiba, 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 42 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
Sosa, Chiba, Japan
6 AM6th Mar 2026
5 PM
5 AM7th Mar 2026
74AQI
21AQI
70AQI
17AQI
In the last 24 hours,
Sosa's AQI reached its highest point of 74 at 10 AM during the Day, while the lowest point, 17, was recorded at 8 PM during the Night between 6th Mar and 7th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Sosa, Chiba, Japan
10°C6/14°C
3°C1/5°C
0°C-3/1°C
0°C-4/4°C
7°C2/11°C
8°C6/10°C
6°C4/7°C
6°C5/8°C
10°C6/15°C
13°C9/17°C
9°C4/11°C
6°C3/8°C
8°C5/11°C
6°C2/10°C
7°C3/10°C
10°C7/14°C
13°C8/16°C
16°C12/20°C
12°C10/14°C
11°C8/14°C
8°C7/11°C
11°C9/13°C
12°C10/17°C
12°C8/16°C
11°C10/11°C
9°C8/10°C
7°C4/11°C
9°C5/14°C
10°C7/12°C
12°C9/14°C
44AQI
31AQI
39AQI
32AQI
2026 Days Vs Air Quality
Sosa, Chiba, Japan
92%
61
8%
5
Total number of days with different AQI categories in last 67 days in 2026 (298 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% 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
Sosa, Chiba, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
12AQI (US)
10AQI (US)
21AQI (US)
38AQI (US)
28AQI (US)
20AQI (US)
36AQI (US)
18AQI (US)
26AQI (US)
35AQI (US)
17AQI (US)
37AQI (US)
13AQI (US)
21AQI (US)
35AQI (US)
41AQI (US)
21AQI (US)
39AQI (US)
31AQI (US)
14AQI (US)
20AQI (US)
14AQI (US)
36AQI (US)
21AQI (US)
15AQI (US)
33AQI (US)
29AQI (US)
18AQI (US)
36AQI (US)
35AQI (US)
40AQI (US)
37AQI (US)
26AQI (US)
41AQI (US)
58AQI (US)
64AQI (US)
11AQI (US)
10AQI (US)
34AQI (US)
40AQI (US)
52AQI (US)
35AQI (US)
44AQI (US)
51AQI (US)
49AQI (US)
46AQI (US)
16AQI (US)
37AQI (US)
28AQI (US)
19AQI (US)
41AQI (US)
39AQI (US)
38AQI (US)
40AQI (US)
26AQI (US)
24AQI (US)
28AQI (US)
36AQI (US)
35AQI (US)
29AQI (US)
20AQI (US)
48AQI (US)
51AQI (US)
47AQI (US)
42AQI (US)
25AQI (US)
36AQI (US)
39AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
March39AQI (US)
Lowest AQI (US) recorded in
January25AQI (US)
202538AQI (US)
Highest AQI (US) recorded in
August43AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
202436AQI (US)
Highest AQI (US) recorded in
July46AQI (US)
Lowest AQI (US) recorded in
August24AQI (US)
202336AQI (US)
Highest AQI (US) recorded in
December44AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202238AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
August23AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
December43AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202037AQI (US)
Highest AQI (US) recorded in
August43AQI (US)
Lowest AQI (US) recorded in
May28AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sosa's annual 2026 AQI (US) (31) shows an average percentage change of -14.6% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (35), 2022 (38), 2023 (36), 2024 (36), 2025 (38).