Chengde County Environmental Protection Bureau, Chengde, Hebei, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Chengde County Environmental Protection Bureau, Chengde, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 60 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Aug - 23rd Aug 2025
Chengde County Environmental Protection Bureau, Chengde, Hebei, China
5 AM22nd Aug 2025
7 PM
4 AM23rd Aug 2025
AQI
AQI
62AQI
48AQI
In the last 24 hours,
Chengde County Environmental Protection Bureau's AQI reached its highest point of 62 at 9 PM during the Night, while the lowest point, 48, was recorded at 11 AM during the Night between 22nd Aug and 23rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chengde County Environmental Protection Bureau, Chengde, Hebei, China
23°C18/29°C
23°C19/28°C
25°C19/34°C
24°C19/30°C
25°C21/30°C
22°C20/27°C
23°C17/29°C
22°C16/29°C
25°C17/34°C
26°C19/33°C
26°C20/32°C
25°C20/31°C
25°C20/33°C
26°C20/33°C
24°C19/31°C
21°C19/26°C
23°C16/31°C
24°C16/33°C
24°C17/30°C
23°C18/30°C
22°C17/31°C
23°C17/31°C
23°C19/31°C
23°C19/29°C
24°C19/32°C
24°C18/31°C
23°C19/28°C
23°C20/28°C
24°C20/30°C
--°C/°C
--°C/°C
62AQI
57AQI
61AQI
61AQI
2025 Days Vs Air Quality
Chengde County Environmental Protection Bureau, Chengde, Hebei, China
2%
4
87%
202
10%
24
1%
3
Total number of days with different AQI categories in last 234 days in 2025 (131 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 234 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
Chengde County Environmental Protection Bureau, Chengde, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
91AQI
70AQI
86AQI
108AQI
98AQI
69AQI
67AQI
54AQI
56AQI
63AQI
85AQI
84AQI
83AQI
67AQI
65AQI
82AQI
100AQI
123AQI
91AQI
121AQI
92AQI
101AQI
127AQI
140AQI
157AQI
116AQI
77AQI
82AQI
117AQI
90AQI
133AQI
126AQI
110AQI
74AQI
66AQI
56AQI
64AQI
46AQI
47AQI
56AQI
89AQI
123AQI
82AQI
102AQI
94AQI
98AQI
62AQI
62AQI
62AQI
59AQI
59AQI
52AQI
55AQI
50AQI
67AQI
64AQI
76AQI
123AQI
129AQI
146AQI
92AQI
97AQI
94AQI
93AQI
74AQI
87AQI
127AQI
139AQI
155AQI
166AQI
88AQI
107AQI
97AQI
88AQI
72AQI
67AQI
54AQI
60AQI
58AQI
54AQI
58AQI
105AQI
56AQI
71AQI
92AQI
64AQI
69AQI
57AQI
61AQI
71AQI
76AQI
57AQI
71AQI
80AQI
51AQI
71AQI
80AQI
66AQI
74AQI
81AQI
105AQI
70AQI
73AQI
66AQI
76AQI
96AQI
94AQI
64AQI
70AQI
77AQI
92AQI
64AQI
74AQI
56AQI
67AQI
89AQI
52AQI
73AQI
70AQI
66AQI
62AQI
63AQI
56AQI
59AQI
75AQI
63AQI
86AQI
98AQI
68AQI
75AQI
82AQI
86AQI
97AQI
75AQI
78AQI
102AQI
71AQI
72AQI
74AQI
103AQI
86AQI
107AQI
80AQI
78AQI
79AQI
82AQI
80AQI
81AQI
93AQI
98AQI
99AQI
93AQI
80AQI
59AQI
59AQI
63AQI
58AQI
57AQI
63AQI
71AQI
59AQI
68AQI
77AQI
77AQI
83AQI
65AQI
56AQI
63AQI
69AQI
67AQI
59AQI
53AQI
46AQI
56AQI
68AQI
73AQI
70AQI
76AQI
68AQI
75AQI
69AQI
69AQI
67AQI
66AQI
66AQI
66AQI
56AQI
60AQI
63AQI
68AQI
75AQI
75AQI
77AQI
62AQI
59AQI
62AQI
57AQI
54AQI
57AQI
65AQI
57AQI
54AQI
63AQI
63AQI
58AQI
62AQI
65AQI
57AQI
52AQI
53AQI
51AQI
56AQI
63AQI
64AQI
62AQI
60AQI
59AQI
61AQI
61AQI
58AQI
53AQI
56AQI
61AQI
64AQI
61AQI
65AQI
65AQI
57AQI
61AQI
64AQI
62AQI
60AQI
60AQI
93AQI
77AQI
88AQI
73AQI
81AQI
67AQI
62AQI
61AQI
No. of days
202576AQI
Highest AQI recorded in
January93AQI
Lowest AQI recorded in
August61AQI
202467AQI
Highest AQI recorded in
November92AQI
Lowest AQI recorded in
September50AQI
202387AQI
Highest AQI recorded in
December91AQI
Lowest AQI recorded in
November49AQI
202276AQI
Highest AQI recorded in
February93AQI
Lowest AQI recorded in
March66AQI
2021100AQI
Highest AQI recorded in
March129AQI
Lowest AQI recorded in
April69AQI
202097AQI
Highest AQI recorded in
July127AQI
Lowest AQI recorded in
September72AQI
Most & Least Polluted Years Over the Last 6 Years
Chengde County Environmental Protection Bureau's annual 2025 AQI (76) shows an average percentage change of -9.1% (improved AQI) compared to previous years: 2020 (97), 2021 (100), 2022 (76), 2023 (87), 2024 (67).