Economic Development Zone Sanitation Department, Changchun, Jilin, China 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
Economic Development Zone Sanitation Department, Changchun, Jilin, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 54 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Economic Development Zone Sanitation Department, Changchun, Jilin, China
7 AM21st Sep 2025
8 PM
6 AM22nd Sep 2025
66AQI
20AQI
65AQI
53AQI
In the last 24 hours,
Economic Development Zone Sanitation Department's AQI reached its highest point of 66 at 8 AM during the Day, while the lowest point, 20, was recorded at 5 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Economic Development Zone Sanitation Department, Changchun, Jilin, China
24°C20/29°C
22°C18/26°C
21°C18/24°C
21°C17/25°C
20°C16/26°C
18°C17/18°C
20°C17/24°C
22°C17/27°C
20°C17/24°C
21°C16/27°C
21°C16/27°C
23°C18/29°C
23°C17/29°C
22°C17/28°C
20°C17/24°C
19°C14/24°C
17°C12/23°C
16°C10/22°C
18°C13/24°C
20°C13/26°C
21°C18/26°C
21°C16/27°C
20°C15/26°C
18°C12/23°C
16°C11/20°C
13°C8/19°C
14°C8/21°C
15°C10/21°C
17°C12/24°C
15°C10/22°C
--°C/°C
56AQI
37AQI
61AQI
51AQI
2025 Days Vs Air Quality
Economic Development Zone Sanitation Department, Changchun, Jilin, China
22%
57
52%
137
23%
60
4%
10
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 22%
Health Risk Level:
Very high
In 2025, 22% of 265 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Economic Development Zone Sanitation Department, Changchun, Jilin, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
80AQI
72AQI
71AQI
104AQI
123AQI
141AQI
103AQI
114AQI
109AQI
133AQI
130AQI
152AQI
151AQI
109AQI
96AQI
91AQI
98AQI
110AQI
100AQI
130AQI
137AQI
143AQI
152AQI
140AQI
150AQI
145AQI
162AQI
109AQI
143AQI
109AQI
144AQI
136AQI
168AQI
121AQI
144AQI
123AQI
119AQI
93AQI
89AQI
100AQI
111AQI
125AQI
111AQI
129AQI
117AQI
137AQI
82AQI
82AQI
65AQI
72AQI
72AQI
73AQI
81AQI
85AQI
77AQI
143AQI
76AQI
134AQI
137AQI
100AQI
88AQI
89AQI
84AQI
118AQI
107AQI
100AQI
133AQI
141AQI
154AQI
149AQI
155AQI
93AQI
87AQI
85AQI
102AQI
103AQI
110AQI
122AQI
142AQI
117AQI
163AQI
166AQI
111AQI
180AQI
148AQI
97AQI
79AQI
68AQI
72AQI
112AQI
123AQI
109AQI
139AQI
126AQI
101AQI
130AQI
92AQI
122AQI
136AQI
131AQI
140AQI
101AQI
74AQI
69AQI
64AQI
54AQI
89AQI
60AQI
68AQI
89AQI
97AQI
60AQI
65AQI
102AQI
61AQI
84AQI
51AQI
91AQI
86AQI
79AQI
66AQI
59AQI
56AQI
46AQI
66AQI
55AQI
74AQI
65AQI
70AQI
60AQI
71AQI
79AQI
79AQI
89AQI
80AQI
64AQI
62AQI
64AQI
55AQI
62AQI
71AQI
67AQI
56AQI
56AQI
49AQI
63AQI
72AQI
94AQI
79AQI
84AQI
92AQI
58AQI
85AQI
43AQI
65AQI
49AQI
51AQI
39AQI
52AQI
47AQI
43AQI
47AQI
51AQI
54AQI
56AQI
72AQI
56AQI
59AQI
63AQI
63AQI
57AQI
48AQI
43AQI
48AQI
55AQI
60AQI
59AQI
63AQI
64AQI
64AQI
56AQI
56AQI
58AQI
54AQI
49AQI
55AQI
49AQI
51AQI
55AQI
58AQI
60AQI
61AQI
62AQI
54AQI
54AQI
52AQI
52AQI
51AQI
52AQI
52AQI
42AQI
45AQI
48AQI
46AQI
41AQI
50AQI
59AQI
43AQI
50AQI
44AQI
38AQI
42AQI
53AQI
55AQI
45AQI
43AQI
49AQI
45AQI
40AQI
38AQI
45AQI
38AQI
43AQI
54AQI
50AQI
47AQI
57AQI
54AQI
41AQI
48AQI
50AQI
45AQI
42AQI
38AQI
51AQI
40AQI
43AQI
41AQI
43AQI
41AQI
42AQI
54AQI
55AQI
49AQI
55AQI
59AQI
59AQI
67AQI
51AQI
50AQI
50AQI
50AQI
53AQI
55AQI
60AQI
61AQI
57AQI
45AQI
46AQI
43AQI
44AQI
41AQI
50AQI
54AQI
121AQI
107AQI
115AQI
93AQI
68AQI
56AQI
51AQI
46AQI
52AQI
No. of days
202580AQI
Highest AQI recorded in
January121AQI
Lowest AQI recorded in
August46AQI
202480AQI
Highest AQI recorded in
April128AQI
Lowest AQI recorded in
September39AQI
202383AQI
Highest AQI recorded in
March120AQI
Lowest AQI recorded in
August38AQI
202282AQI
Highest AQI recorded in
January130AQI
Lowest AQI recorded in
August46AQI
202185AQI
Highest AQI recorded in
March120AQI
Lowest AQI recorded in
September46AQI
202083AQI
Highest AQI recorded in
April202AQI
Lowest AQI recorded in
August48AQI
Most & Least Polluted Years Over the Last 6 Years
Economic Development Zone Sanitation Department's annual 2025 AQI (80) shows an average percentage change of -3.4% (improved AQI) compared to previous years: 2020 (83), 2021 (85), 2022 (82), 2023 (83), 2024 (80).