Rom Yen, Chiang Kham District, Phayao, 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
Rom Yen, Chiang Kham District, Phayao, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (16th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 105 of Poor air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 15th Feb - 16th Feb 2026
Rom Yen, Chiang Kham District, Phayao, Thailand
6 AM15th Feb 2026
6 PM
5 AM16th Feb 2026
118AQI
84AQI
111AQI
86AQI
In the last 24 hours,
Rom Yen's AQI reached its highest point of 118 at 9 AM during the Day, while the lowest point, 84, was recorded at 5 PM during the Day between 15th Feb and 16th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Rom Yen, Chiang Kham District, Phayao, Thailand
22°C14/31°C
21°C14/31°C
20°C12/31°C
21°C13/31°C
21°C13/31°C
21°C14/31°C
21°C13/30°C
21°C13/31°C
21°C14/31°C
21°C13/32°C
21°C14/32°C
22°C14/32°C
22°C14/32°C
22°C14/33°C
22°C14/33°C
22°C15/33°C
22°C14/32°C
22°C14/32°C
23°C15/33°C
23°C15/33°C
23°C15/34°C
24°C16/33°C
22°C16/30°C
23°C16/33°C
24°C17/34°C
24°C17/35°C
25°C17/35°C
25°C16/35°C
24°C17/35°C
25°C17/36°C
120AQI
75AQI
88AQI
80AQI
2026 Days Vs Air Quality
Rom Yen, Chiang Kham District, Phayao, Thailand
83%
39
17%
8
Total number of days with different AQI categories in last 48 days in 2026 (317 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 48 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
Rom Yen, Chiang Kham District, Phayao, Thailand
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
91AQI (US)
78AQI (US)
69AQI (US)
58AQI (US)
60AQI (US)
67AQI (US)
66AQI (US)
64AQI (US)
66AQI (US)
72AQI (US)
80AQI (US)
91AQI (US)
89AQI (US)
86AQI (US)
88AQI (US)
88AQI (US)
88AQI (US)
80AQI (US)
79AQI (US)
77AQI (US)
76AQI (US)
80AQI (US)
83AQI (US)
86AQI (US)
87AQI (US)
94AQI (US)
95AQI (US)
101AQI (US)
106AQI (US)
112AQI (US)
112AQI (US)
109AQI (US)
93AQI (US)
84AQI (US)
72AQI (US)
91AQI (US)
95AQI (US)
104AQI (US)
90AQI (US)
73AQI (US)
74AQI (US)
85AQI (US)
80AQI (US)
79AQI (US)
102AQI (US)
100AQI (US)
105AQI (US)
83AQI (US)
90AQI (US)
No. of days
202685AQI (US)
Highest AQI (US) recorded in
February90AQI (US)
Lowest AQI (US) recorded in
January83AQI (US)
202573AQI (US)
Highest AQI (US) recorded in
March124AQI (US)
Lowest AQI (US) recorded in
September40AQI (US)
202453AQI (US)
Highest AQI (US) recorded in
December86AQI (US)
Lowest AQI (US) recorded in
February6AQI (US)
202366AQI (US)
Highest AQI (US) recorded in
November89AQI (US)
Lowest AQI (US) recorded in
January9AQI (US)
20222AQI (US)
Highest AQI (US) recorded in
November2AQI (US)
Lowest AQI (US) recorded in
November2AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Rom Yen's annual 2026 AQI (US) (85) shows an average percentage change of 1066.9% (worsened AQI (US)) compared to previous years: 2022 (2), 2023 (66), 2024 (53), 2025 (73).