National Housing Authority Klongchan, 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
National Housing Authority Klongchan, Bangkok, Bangkok, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (17th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 86 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: 16th Feb - 17th Feb 2026
National Housing Authority Klongchan, Bangkok, Bangkok, Thailand
6 AM16th Feb 2026
6 PM
5 AM17th Feb 2026
110AQI
85AQI
109AQI
85AQI
In the last 24 hours,
National Housing Authority Klongchan's AQI reached its highest point of 110 at 2 PM during the Day, while the lowest point, 85, was recorded at 5 AM during the Night between 16th Feb and 17th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
National Housing Authority Klongchan, Bangkok, Bangkok, Thailand
29°C26/34°C
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°C26/34°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
106AQI
87AQI
96AQI
89AQI
2026 Days Vs Air Quality
National Housing Authority Klongchan, Bangkok, Bangkok, Thailand
71%
34
29%
14
Total number of days with different AQI categories in last 49 days in 2026 (316 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 49 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
National Housing Authority Klongchan, Bangkok, Bangkok, Thailand
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
104AQI (US)
73AQI (US)
64AQI (US)
68AQI (US)
77AQI (US)
72AQI (US)
61AQI (US)
66AQI (US)
86AQI (US)
76AQI (US)
86AQI (US)
94AQI (US)
100AQI (US)
114AQI (US)
131AQI (US)
112AQI (US)
82AQI (US)
77AQI (US)
80AQI (US)
83AQI (US)
74AQI (US)
87AQI (US)
88AQI (US)
86AQI (US)
107AQI (US)
116AQI (US)
123AQI (US)
104AQI (US)
90AQI (US)
120AQI (US)
107AQI (US)
104AQI (US)
83AQI (US)
60AQI (US)
82AQI (US)
112AQI (US)
94AQI (US)
79AQI (US)
78AQI (US)
96AQI (US)
95AQI (US)
118AQI (US)
131AQI (US)
95AQI (US)
88AQI (US)
83AQI (US)
99AQI (US)
86AQI (US)
91AQI (US)
93AQI (US)
No. of days
202691AQI (US)
Highest AQI (US) recorded in
February93AQI (US)
Lowest AQI (US) recorded in
January91AQI (US)
202569AQI (US)
Highest AQI (US) recorded in
January104AQI (US)
Lowest AQI (US) recorded in
June45AQI (US)
202464AQI (US)
Highest AQI (US) recorded in
December84AQI (US)
Lowest AQI (US) recorded in
June51AQI (US)
202372AQI (US)
Highest AQI (US) recorded in
February95AQI (US)
Lowest AQI (US) recorded in
July53AQI (US)
202263AQI (US)
Highest AQI (US) recorded in
February81AQI (US)
Lowest AQI (US) recorded in
May44AQI (US)
202163AQI (US)
Highest AQI (US) recorded in
February117AQI (US)
Lowest AQI (US) recorded in
August38AQI (US)
202058AQI (US)
Highest AQI (US) recorded in
December88AQI (US)
Lowest AQI (US) recorded in
September42AQI (US)
Most & Least Polluted Years Over the Last 7 Years
National Housing Authority Klongchan's annual 2026 AQI (US) (91) shows an average percentage change of 42.1% (worsened AQI (US)) compared to previous years: 2020 (58), 2021 (63), 2022 (63), 2023 (72), 2024 (64), 2025 (69).