Chai Prakan 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
Chai Prakan Hospital, Ban Piang Luang, Chiang Mai, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (23rd September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 41 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 23rd Sep - 24th Sep 2025
Chai Prakan Hospital, Ban Piang Luang, Chiang Mai, Thailand
6 AM23rd Sep 2025
6 PM
5 AM24th Sep 2025
56AQI
25AQI
44AQI
37AQI
In the last 24 hours,
Chai Prakan Hospital's AQI reached its highest point of 56 at 8 AM during the Day, while the lowest point, 25, was recorded at 1 PM during the Day between 23rd Sep and 24th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Chai Prakan Hospital, Ban Piang Luang, Chiang Mai, Thailand
24°C19/30°C
22°C19/26°C
20°C19/22°C
21°C19/24°C
22°C18/29°C
23°C18/29°C
21°C20/26°C
22°C20/25°C
22°C19/27°C
23°C19/29°C
23°C19/31°C
24°C19/31°C
24°C20/32°C
24°C19/31°C
23°C19/30°C
23°C19/29°C
22°C19/27°C
22°C21/24°C
22°C20/27°C
23°C20/30°C
22°C19/27°C
23°C19/29°C
23°C18/29°C
23°C18/30°C
23°C19/30°C
23°C19/27°C
22°C19/28°C
22°C20/27°C
22°C20/28°C
22°C19/26°C
--°C/°C
52AQI
44AQI
54AQI
52AQI
2025 Days Vs Air Quality
Chai Prakan Hospital, Ban Piang Luang, Chiang Mai, Thailand
32%
85
38%
100
26%
68
5%
13
Total number of days with different AQI categories in last 267 days in 2025 (98 days remaining)
Under WHO’s Safe Air Quality Limits: 32%
Health Risk Level:
High
In 2025, 32% of 267 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
Chai Prakan Hospital, Ban Piang Luang, Chiang Mai, Thailand
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
85AQI
77AQI
82AQI
89AQI
96AQI
108AQI
104AQI
108AQI
122AQI
113AQI
108AQI
91AQI
96AQI
95AQI
101AQI
97AQI
93AQI
91AQI
93AQI
104AQI
112AQI
112AQI
114AQI
111AQI
107AQI
101AQI
90AQI
88AQI
99AQI
113AQI
102AQI
99AQI
101AQI
104AQI
112AQI
112AQI
112AQI
109AQI
108AQI
97AQI
103AQI
107AQI
114AQI
109AQI
108AQI
101AQI
123AQI
127AQI
123AQI
114AQI
115AQI
101AQI
105AQI
93AQI
79AQI
71AQI
64AQI
68AQI
74AQI
72AQI
80AQI
97AQI
110AQI
128AQI
121AQI
130AQI
118AQI
106AQI
97AQI
103AQI
105AQI
103AQI
109AQI
132AQI
126AQI
143AQI
129AQI
113AQI
99AQI
119AQI
136AQI
149AQI
154AQI
157AQI
154AQI
153AQI
163AQI
162AQI
164AQI
159AQI
154AQI
151AQI
152AQI
152AQI
152AQI
144AQI
115AQI
107AQI
132AQI
131AQI
131AQI
100AQI
86AQI
64AQI
62AQI
59AQI
60AQI
57AQI
59AQI
63AQI
68AQI
81AQI
91AQI
99AQI
108AQI
110AQI
111AQI
82AQI
76AQI
69AQI
66AQI
72AQI
65AQI
73AQI
73AQI
92AQI
107AQI
102AQI
108AQI
118AQI
112AQI
85AQI
73AQI
74AQI
52AQI
54AQI
53AQI
48AQI
47AQI
54AQI
61AQI
72AQI
58AQI
56AQI
51AQI
52AQI
55AQI
50AQI
50AQI
52AQI
49AQI
58AQI
54AQI
65AQI
71AQI
73AQI
71AQI
88AQI
87AQI
79AQI
62AQI
60AQI
55AQI
57AQI
57AQI
52AQI
50AQI
48AQI
37AQI
38AQI
41AQI
43AQI
46AQI
39AQI
39AQI
41AQI
43AQI
40AQI
42AQI
41AQI
45AQI
47AQI
46AQI
50AQI
45AQI
42AQI
43AQI
39AQI
42AQI
47AQI
46AQI
47AQI
45AQI
43AQI
43AQI
43AQI
41AQI
43AQI
39AQI
37AQI
40AQI
43AQI
45AQI
42AQI
38AQI
37AQI
43AQI
46AQI
42AQI
40AQI
44AQI
50AQI
54AQI
52AQI
52AQI
54AQI
52AQI
47AQI
46AQI
40AQI
42AQI
44AQI
45AQI
47AQI
47AQI
46AQI
45AQI
47AQI
46AQI
50AQI
47AQI
51AQI
51AQI
49AQI
48AQI
47AQI
49AQI
47AQI
47AQI
45AQI
48AQI
48AQI
48AQI
50AQI
51AQI
52AQI
60AQI
52AQI
51AQI
54AQI
55AQI
54AQI
50AQI
48AQI
50AQI
48AQI
45AQI
50AQI
50AQI
51AQI
61AQI
59AQI
56AQI
52AQI
45AQI
41AQI
100AQI
102AQI
126AQI
101AQI
69AQI
54AQI
43AQI
48AQI
52AQI
No. of days
202578AQI
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
July43AQI
202452AQI
Highest AQI recorded in
April173AQI
Lowest AQI recorded in
September38AQI
202375AQI
Highest AQI recorded in
November89AQI
Lowest AQI recorded in
December74AQI
202283AQI
Highest AQI recorded in
March143AQI
Lowest AQI recorded in
July28AQI
2021106AQI
Highest AQI recorded in
March219AQI
Lowest AQI recorded in
June41AQI
202099AQI
Highest AQI recorded in
March211AQI
Lowest AQI recorded in
July22AQI
Most & Least Polluted Years Over the Last 6 Years
Chai Prakan Hospital's annual 2025 AQI (78) shows an average percentage change of -0.3% (improved AQI) compared to previous years: 2020 (99), 2021 (106), 2022 (83), 2023 (75), 2024 (52).