Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (22nd September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 30 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 23rd Sep - 24th Sep 2025
Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand
6 AM23rd Sep 2025
6 PM
5 AM24th Sep 2025
36AQI
15AQI
34AQI
24AQI
In the last 24 hours,
Wiang Haeng Hospital's AQI reached its highest point of 36 at 6 AM during the Day, while the lowest point, 15, was recorded at 8 AM during the Day between 23rd Sep and 24th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand
22°C17/26°C
20°C16/23°C
19°C17/18°C
18°C16/18°C
20°C14/25°C
21°C16/25°C
23°C20/27°C
23°C19/26°C
21°C17/23°C
22°C17/27°C
23°C17/28°C
23°C17/27°C
22°C17/28°C
22°C16/27°C
22°C16/27°C
21°C16/25°C
21°C17/22°C
20°C18/21°C
21°C17/25°C
22°C17/25°C
21°C17/25°C
21°C16/26°C
21°C16/25°C
22°C16/28°C
22°C16/26°C
22°C16/27°C
23°C18/29°C
23°C21/26°C
21°C18/23°C
21°C17/23°C
--°C/°C
51AQI
39AQI
51AQI
48AQI
2025 Days Vs Air Quality
Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand
41%
109
42%
110
15%
41
2%
5
Total number of days with different AQI categories in last 267 days in 2025 (98 days remaining)
Under WHO’s Safe Air Quality Limits: 41%
Health Risk Level:
Significant
In 2025, 41% of 267 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Wiang Haeng Hospital, Ban Piang Luang, Chiang Mai, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
82AQI
75AQI
80AQI
86AQI
86AQI
91AQI
83AQI
97AQI
87AQI
92AQI
86AQI
81AQI
89AQI
89AQI
90AQI
86AQI
86AQI
84AQI
83AQI
86AQI
92AQI
82AQI
83AQI
83AQI
89AQI
92AQI
86AQI
89AQI
94AQI
100AQI
97AQI
95AQI
99AQI
92AQI
96AQI
95AQI
104AQI
97AQI
97AQI
86AQI
93AQI
94AQI
91AQI
92AQI
97AQI
95AQI
108AQI
98AQI
95AQI
96AQI
99AQI
94AQI
103AQI
93AQI
81AQI
70AQI
68AQI
69AQI
75AQI
75AQI
81AQI
88AQI
104AQI
116AQI
111AQI
114AQI
114AQI
102AQI
92AQI
101AQI
100AQI
104AQI
105AQI
121AQI
122AQI
136AQI
116AQI
111AQI
104AQI
119AQI
120AQI
147AQI
124AQI
132AQI
118AQI
137AQI
153AQI
155AQI
160AQI
158AQI
151AQI
150AQI
140AQI
147AQI
142AQI
139AQI
111AQI
98AQI
124AQI
127AQI
129AQI
98AQI
88AQI
65AQI
64AQI
64AQI
60AQI
60AQI
62AQI
76AQI
72AQI
76AQI
88AQI
92AQI
103AQI
108AQI
108AQI
84AQI
75AQI
69AQI
59AQI
58AQI
54AQI
61AQI
65AQI
74AQI
103AQI
117AQI
92AQI
108AQI
101AQI
80AQI
64AQI
58AQI
39AQI
36AQI
43AQI
39AQI
40AQI
42AQI
52AQI
48AQI
46AQI
35AQI
37AQI
39AQI
42AQI
37AQI
36AQI
36AQI
39AQI
38AQI
38AQI
48AQI
61AQI
69AQI
61AQI
62AQI
57AQI
55AQI
46AQI
41AQI
37AQI
38AQI
41AQI
37AQI
29AQI
33AQI
38AQI
40AQI
42AQI
45AQI
47AQI
40AQI
39AQI
42AQI
44AQI
43AQI
43AQI
42AQI
46AQI
45AQI
46AQI
45AQI
43AQI
41AQI
44AQI
42AQI
44AQI
46AQI
46AQI
47AQI
47AQI
45AQI
46AQI
45AQI
43AQI
46AQI
42AQI
41AQI
41AQI
43AQI
46AQI
42AQI
39AQI
37AQI
43AQI
45AQI
41AQI
40AQI
44AQI
48AQI
51AQI
51AQI
50AQI
52AQI
51AQI
48AQI
39AQI
33AQI
33AQI
43AQI
45AQI
46AQI
46AQI
44AQI
45AQI
47AQI
45AQI
47AQI
46AQI
49AQI
49AQI
48AQI
47AQI
46AQI
48AQI
47AQI
47AQI
46AQI
47AQI
48AQI
49AQI
51AQI
51AQI
53AQI
38AQI
53AQI
50AQI
54AQI
56AQI
57AQI
53AQI
52AQI
51AQI
48AQI
46AQI
48AQI
48AQI
50AQI
51AQI
44AQI
36AQI
33AQI
30AQI
87AQI
92AQI
117AQI
99AQI
57AQI
45AQI
44AQI
46AQI
48AQI
No. of days
202571AQI
Highest AQI recorded in
March117AQI
Lowest AQI recorded in
July44AQI
202449AQI
Highest AQI recorded in
April162AQI
Lowest AQI recorded in
September33AQI
202351AQI
Highest AQI recorded in
November56AQI
Lowest AQI recorded in
December50AQI
202263AQI
Highest AQI recorded in
March121AQI
Lowest AQI recorded in
July16AQI
202170AQI
Highest AQI recorded in
March183AQI
Lowest AQI recorded in
July20AQI
2020102AQI
Highest AQI recorded in
April269AQI
Lowest AQI recorded in
June17AQI
Most & Least Polluted Years Over the Last 6 Years
Wiang Haeng Hospital's annual 2025 AQI (71) shows an average percentage change of 13.4% (worsened AQI) compared to previous years: 2020 (102), 2021 (70), 2022 (63), 2023 (51), 2024 (49).