Hepan District, Chaoyang, Liaoning, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Hepan District, Chaoyang, Liaoning, China
AQI Trends: Highest and Lowest
Same Day Analysis (15th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 109 of Poor air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 15th Oct - 16th Oct 2025
Hepan District, Chaoyang, Liaoning, China
5 AM15th Oct 2025
5 PM
4 AM16th Oct 2025
152AQI
88AQI
126AQI
71AQI
In the last 24 hours,
Hepan District's AQI reached its highest point of 152 at 3 PM during the Day, while the lowest point, 71, was recorded at 3 AM during the Night between 15th Oct and 16th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hepan District, Chaoyang, Liaoning, China
16°C11/20°C
15°C9/22°C
17°C11/24°C
17°C13/23°C
19°C12/26°C
19°C14/26°C
19°C14/25°C
17°C13/23°C
20°C15/26°C
21°C15/27°C
21°C16/27°C
19°C16/23°C
20°C13/27°C
21°C15/28°C
21°C17/28°C
22°C15/30°C
21°C16/29°C
20°C15/26°C
20°C14/27°C
15°C11/17°C
14°C10/21°C
18°C12/27°C
12°C9/16°C
10°C9/13°C
12°C9/17°C
14°C11/21°C
11°C9/14°C
15°C9/22°C
14°C10/20°C
11°C8/15°C
--°C/°C
76AQI
56AQI
78AQI
58AQI
2025 Days Vs Air Quality
Hepan District, Chaoyang, Liaoning, China
6%
17
81%
234
10%
30
2%
6
0.3%
1
Total number of days with different AQI categories in last 289 days in 2025 (76 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 289 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
Hepan District, Chaoyang, Liaoning, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
93AQI
78AQI
89AQI
106AQI
116AQI
84AQI
79AQI
58AQI
63AQI
92AQI
99AQI
116AQI
98AQI
81AQI
74AQI
78AQI
94AQI
109AQI
91AQI
120AQI
97AQI
112AQI
142AQI
156AQI
160AQI
142AQI
85AQI
130AQI
214AQI
127AQI
151AQI
141AQI
134AQI
89AQI
85AQI
73AQI
81AQI
64AQI
64AQI
80AQI
98AQI
131AQI
97AQI
122AQI
101AQI
132AQI
68AQI
73AQI
58AQI
59AQI
56AQI
55AQI
57AQI
68AQI
66AQI
71AQI
79AQI
130AQI
130AQI
136AQI
79AQI
101AQI
93AQI
109AQI
72AQI
107AQI
117AQI
154AQI
154AQI
152AQI
94AQI
97AQI
76AQI
74AQI
68AQI
75AQI
58AQI
88AQI
72AQI
75AQI
82AQI
101AQI
56AQI
111AQI
108AQI
81AQI
78AQI
57AQI
65AQI
80AQI
73AQI
57AQI
75AQI
102AQI
65AQI
83AQI
83AQI
65AQI
67AQI
77AQI
92AQI
62AQI
47AQI
54AQI
79AQI
96AQI
99AQI
57AQI
68AQI
72AQI
75AQI
45AQI
68AQI
64AQI
59AQI
85AQI
46AQI
69AQI
74AQI
61AQI
62AQI
64AQI
57AQI
53AQI
70AQI
60AQI
76AQI
92AQI
67AQI
72AQI
91AQI
95AQI
100AQI
83AQI
79AQI
78AQI
65AQI
60AQI
75AQI
87AQI
102AQI
100AQI
72AQI
89AQI
68AQI
85AQI
98AQI
92AQI
85AQI
100AQI
87AQI
79AQI
69AQI
56AQI
58AQI
57AQI
51AQI
45AQI
59AQI
59AQI
43AQI
60AQI
70AQI
59AQI
69AQI
60AQI
44AQI
56AQI
65AQI
70AQI
52AQI
47AQI
33AQI
54AQI
68AQI
66AQI
69AQI
72AQI
64AQI
68AQI
64AQI
64AQI
64AQI
58AQI
63AQI
71AQI
57AQI
59AQI
61AQI
66AQI
65AQI
66AQI
69AQI
59AQI
59AQI
59AQI
59AQI
56AQI
53AQI
59AQI
52AQI
47AQI
61AQI
57AQI
53AQI
62AQI
65AQI
61AQI
58AQI
47AQI
42AQI
53AQI
61AQI
67AQI
58AQI
51AQI
56AQI
55AQI
46AQI
53AQI
45AQI
52AQI
57AQI
59AQI
55AQI
58AQI
64AQI
57AQI
54AQI
61AQI
61AQI
58AQI
60AQI
54AQI
59AQI
54AQI
55AQI
56AQI
58AQI
50AQI
59AQI
65AQI
62AQI
62AQI
67AQI
72AQI
82AQI
85AQI
74AQI
66AQI
64AQI
71AQI
68AQI
73AQI
72AQI
70AQI
69AQI
60AQI
56AQI
49AQI
52AQI
60AQI
61AQI
56AQI
58AQI
65AQI
62AQI
54AQI
68AQI
84AQI
86AQI
54AQI
79AQI
88AQI
95AQI
84AQI
77AQI
55AQI
43AQI
63AQI
38AQI
51AQI
59AQI
91AQI
54AQI
78AQI
130AQI
109AQI
108AQI
88AQI
93AQI
71AQI
79AQI
60AQI
59AQI
57AQI
67AQI
74AQI
No. of days
202575AQI
Highest AQI recorded in
January108AQI
Lowest AQI recorded in
August57AQI
202477AQI
Highest AQI recorded in
February97AQI
Lowest AQI recorded in
September49AQI
202383AQI
Highest AQI recorded in
March115AQI
Lowest AQI recorded in
August54AQI
202279AQI
Highest AQI recorded in
January112AQI
Lowest AQI recorded in
August49AQI
202184AQI
Highest AQI recorded in
March123AQI
Lowest AQI recorded in
August59AQI
202082AQI
Highest AQI recorded in
April98AQI
Lowest AQI recorded in
September61AQI
Most & Least Polluted Years Over the Last 6 Years
Hepan District's annual 2025 AQI (75) shows an average percentage change of -7.01% (improved AQI) compared to previous years: 2020 (82), 2021 (84), 2022 (79), 2023 (83), 2024 (77).