Oster, Chernihivska Oblast, Ukraine 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
Oster, Chernihivska Oblast, Ukraine
AQI Trends: Highest and Lowest
Same Day Analysis (15th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 28 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Feb - 15th Feb 2026
Oster, Chernihivska Oblast, Ukraine
7 AM14th Feb 2026
4 PM
6 AM15th Feb 2026
88AQI
49AQI
42AQI
12AQI
In the last 24 hours,
Oster's AQI reached its highest point of 88 at 12 PM during the Day, while the lowest point, 12, was recorded at 6 AM during the Night between 14th Feb and 15th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Oster, Chernihivska Oblast, Ukraine
-13°C-16/-10°C
-13°C-14/-9°C
-13°C-16/-8°C
-12°C-16/-7°C
-12°C-15/-7°C
-8°C-14/-4°C
-10°C-14/-7°C
-12°C-13/-10°C
-11°C-13/-9°C
-6°C-9/-4°C
-3°C-4/-3°C
-1°C-4/1°C
-1°C-9/0°C
-11°C-13/-9°C
-13°C-16/-11°C
-20°C-24/-15°C
-22°C-26/-16°C
-20°C-24/-13°C
-16°C-22/-12°C
-8°C-10/-7°C
-6°C-7/-5°C
-5°C-6/-3°C
-7°C-14/-5°C
-16°C-20/-10°C
-15°C-21/-8°C
-5°C-13/-1°C
1°C0/2°C
1°C0/2°C
1°C0/3°C
-2°C-3/-2°C
63AQI
56AQI
62AQI
55AQI
2026 Days Vs Air Quality
Oster, Chernihivska Oblast, Ukraine
33%
15
67%
31
Total number of days with different AQI categories in last 47 days in 2026 (318 days remaining)
Under WHO’s Safe Air Quality Limits: 33%
Health Risk Level:
High
In 2026, 33% of 47 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Oster, Chernihivska Oblast, Ukraine
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI (US)
38AQI (US)
47AQI (US)
40AQI (US)
56AQI (US)
43AQI (US)
37AQI (US)
23AQI (US)
22AQI (US)
41AQI (US)
59AQI (US)
57AQI (US)
72AQI (US)
72AQI (US)
61AQI (US)
60AQI (US)
55AQI (US)
54AQI (US)
60AQI (US)
64AQI (US)
81AQI (US)
95AQI (US)
63AQI (US)
59AQI (US)
78AQI (US)
72AQI (US)
64AQI (US)
75AQI (US)
67AQI (US)
46AQI (US)
19AQI (US)
31AQI (US)
54AQI (US)
70AQI (US)
79AQI (US)
52AQI (US)
53AQI (US)
78AQI (US)
60AQI (US)
30AQI (US)
62AQI (US)
33AQI (US)
52AQI (US)
63AQI (US)
62AQI (US)
28AQI (US)
55AQI (US)
54AQI (US)
No. of days
202655AQI (US)
Highest AQI (US) recorded in
January55AQI (US)
Lowest AQI (US) recorded in
February54AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
March62AQI (US)
Lowest AQI (US) recorded in
May21AQI (US)
202445AQI (US)
Highest AQI (US) recorded in
March55AQI (US)
Lowest AQI (US) recorded in
October38AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
December45AQI (US)
Lowest AQI (US) recorded in
November35AQI (US)
202249AQI (US)
Highest AQI (US) recorded in
November51AQI (US)
Lowest AQI (US) recorded in
December21AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Oster's annual 2026 AQI (US) (55) shows an average percentage change of 23.6% (worsened AQI (US)) compared to previous years: 2022 (49), 2023 (43), 2024 (45), 2025 (41).