Public Relations Department, Bangkok, Bangkok, Thailand 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
Public Relations Department, Bangkok, Bangkok, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (18th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 69 of Moderate air quality, showing improvement over 2025 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Feb - 18th Feb 2026
Public Relations Department, Bangkok, Bangkok, Thailand
6 AM17th Feb 2026
6 PM
5 AM18th Feb 2026
87AQI
63AQI
92AQI
34AQI
In the last 24 hours,
Public Relations Department's AQI reached its highest point of 92 at 7 PM during the Night, while the lowest point, 34, was recorded at 5 AM during the Night between 17th Feb and 18th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Public Relations Department, Bangkok, Bangkok, Thailand
29°C26/34°C
29°C26/34°C
29°C26/33°C
28°C25/33°C
29°C24/33°C
29°C25/33°C
29°C25/34°C
29°C25/34°C
29°C25/34°C
29°C26/33°C
29°C26/34°C
30°C26/35°C
30°C26/35°C
29°C25/34°C
29°C24/34°C
30°C26/35°C
30°C27/35°C
30°C27/35°C
30°C27/34°C
30°C27/34°C
30°C26/34°C
31°C27/36°C
31°C27/36°C
31°C27/35°C
30°C27/34°C
30°C27/35°C
31°C27/36°C
31°C28/35°C
30°C28/34°C
31°C27/36°C
81AQI
81AQI
82AQI
76AQI
2026 Days Vs Air Quality
Public Relations Department, Bangkok, Bangkok, Thailand
2%
1
80%
39
18%
9
Total number of days with different AQI categories in last 50 days in 2026 (315 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2026, 2% of 50 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Public Relations Department, Bangkok, Bangkok, Thailand
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
101AQI (US)
70AQI (US)
61AQI (US)
63AQI (US)
67AQI (US)
61AQI (US)
50AQI (US)
60AQI (US)
73AQI (US)
74AQI (US)
75AQI (US)
84AQI (US)
105AQI (US)
107AQI (US)
112AQI (US)
97AQI (US)
71AQI (US)
78AQI (US)
81AQI (US)
74AQI (US)
70AQI (US)
77AQI (US)
65AQI (US)
67AQI (US)
74AQI (US)
103AQI (US)
107AQI (US)
94AQI (US)
78AQI (US)
108AQI (US)
90AQI (US)
98AQI (US)
72AQI (US)
55AQI (US)
72AQI (US)
96AQI (US)
84AQI (US)
62AQI (US)
56AQI (US)
75AQI (US)
77AQI (US)
101AQI (US)
112AQI (US)
71AQI (US)
70AQI (US)
63AQI (US)
79AQI (US)
74AQI (US)
69AQI (US)
81AQI (US)
77AQI (US)
No. of days
202679AQI (US)
Highest AQI (US) recorded in
January81AQI (US)
Lowest AQI (US) recorded in
February77AQI (US)
202567AQI (US)
Highest AQI (US) recorded in
January104AQI (US)
Lowest AQI (US) recorded in
September47AQI (US)
202460AQI (US)
Highest AQI (US) recorded in
January86AQI (US)
Lowest AQI (US) recorded in
June35AQI (US)
202361AQI (US)
Highest AQI (US) recorded in
April90AQI (US)
Lowest AQI (US) recorded in
September37AQI (US)
202258AQI (US)
Highest AQI (US) recorded in
February79AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202160AQI (US)
Highest AQI (US) recorded in
February104AQI (US)
Lowest AQI (US) recorded in
July32AQI (US)
202053AQI (US)
Highest AQI (US) recorded in
December84AQI (US)
Lowest AQI (US) recorded in
September35AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Public Relations Department's annual 2026 AQI (US) (79) shows an average percentage change of 33.4% (worsened AQI (US)) compared to previous years: 2020 (53), 2021 (60), 2022 (58), 2023 (61), 2024 (60), 2025 (67).