Hejian Three Hospitals, Hejian, Hebei, 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
Hejian Three Hospitals, Hejian, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (5th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 100 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Hejian Three Hospitals, Hejian, Hebei, China
6 AM5th Oct 2025
6 PM
5 AM6th Oct 2025
106AQI
72AQI
73AQI
58AQI
In the last 24 hours,
Hejian Three Hospitals's AQI reached its highest point of 106 at 8 AM during the Day, while the lowest point, 58, was recorded at 1 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hejian Three Hospitals, Hejian, Hebei, China
24°C19/30°C
24°C18/30°C
25°C21/31°C
24°C19/32°C
25°C19/31°C
25°C21/30°C
23°C19/28°C
25°C19/31°C
25°C20/32°C
24°C21/28°C
22°C20/26°C
18°C14/22°C
19°C13/26°C
16°C13/18°C
19°C12/27°C
22°C17/27°C
17°C15/18°C
16°C14/18°C
20°C12/29°C
23°C16/30°C
23°C18/29°C
19°C17/21°C
22°C16/29°C
23°C18/30°C
24°C18/32°C
24°C19/30°C
22°C18/26°C
21°C16/24°C
22°C18/26°C
18°C13/23°C
--°C/°C
93AQI
69AQI
84AQI
74AQI
2025 Days Vs Air Quality
Hejian Three Hospitals, Hejian, Hebei, China
0.3%
1
73%
204
23%
65
3%
7
0.3%
1
Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)
Under WHO’s Safe Air Quality Limits: 0.36%
Health Risk Level:
Extreme
In 2025, 0.36% of 279 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
Hejian Three Hospitals, Hejian, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
142AQI
94AQI
126AQI
145AQI
129AQI
86AQI
83AQI
59AQI
64AQI
88AQI
115AQI
91AQI
137AQI
82AQI
92AQI
88AQI
114AQI
145AQI
114AQI
151AQI
141AQI
106AQI
124AQI
136AQI
145AQI
125AQI
84AQI
109AQI
206AQI
116AQI
142AQI
123AQI
138AQI
78AQI
80AQI
64AQI
87AQI
49AQI
60AQI
86AQI
123AQI
143AQI
95AQI
130AQI
130AQI
138AQI
86AQI
81AQI
89AQI
92AQI
102AQI
92AQI
102AQI
67AQI
95AQI
98AQI
131AQI
150AQI
171AQI
182AQI
129AQI
100AQI
97AQI
127AQI
83AQI
146AQI
139AQI
159AQI
164AQI
171AQI
138AQI
156AQI
120AQI
103AQI
77AQI
74AQI
63AQI
78AQI
61AQI
68AQI
70AQI
114AQI
89AQI
86AQI
106AQI
81AQI
88AQI
66AQI
85AQI
94AQI
89AQI
70AQI
93AQI
117AQI
69AQI
111AQI
115AQI
106AQI
106AQI
117AQI
132AQI
102AQI
86AQI
78AQI
80AQI
109AQI
116AQI
82AQI
95AQI
104AQI
111AQI
82AQI
101AQI
68AQI
93AQI
102AQI
80AQI
86AQI
84AQI
90AQI
72AQI
89AQI
61AQI
78AQI
87AQI
79AQI
105AQI
104AQI
77AQI
81AQI
78AQI
84AQI
94AQI
76AQI
74AQI
115AQI
74AQI
95AQI
101AQI
110AQI
98AQI
123AQI
119AQI
92AQI
90AQI
91AQI
94AQI
102AQI
98AQI
100AQI
99AQI
112AQI
93AQI
63AQI
63AQI
75AQI
84AQI
82AQI
86AQI
89AQI
71AQI
82AQI
85AQI
89AQI
87AQI
69AQI
59AQI
67AQI
73AQI
64AQI
66AQI
64AQI
53AQI
64AQI
64AQI
74AQI
75AQI
84AQI
85AQI
81AQI
75AQI
65AQI
67AQI
61AQI
64AQI
60AQI
57AQI
60AQI
61AQI
67AQI
77AQI
77AQI
77AQI
70AQI
65AQI
71AQI
67AQI
64AQI
64AQI
64AQI
69AQI
70AQI
64AQI
62AQI
64AQI
67AQI
65AQI
61AQI
66AQI
57AQI
62AQI
60AQI
64AQI
63AQI
64AQI
61AQI
62AQI
69AQI
70AQI
64AQI
61AQI
63AQI
65AQI
65AQI
63AQI
69AQI
67AQI
55AQI
59AQI
61AQI
62AQI
62AQI
58AQI
57AQI
56AQI
57AQI
56AQI
61AQI
60AQI
51AQI
61AQI
59AQI
57AQI
58AQI
70AQI
74AQI
80AQI
76AQI
68AQI
70AQI
71AQI
73AQI
71AQI
74AQI
76AQI
79AQI
75AQI
84AQI
74AQI
57AQI
59AQI
61AQI
68AQI
74AQI
68AQI
77AQI
86AQI
84AQI
96AQI
74AQI
97AQI
112AQI
111AQI
128AQI
78AQI
94AQI
114AQI
100AQI
115AQI
103AQI
107AQI
96AQI
92AQI
76AQI
65AQI
61AQI
77AQI
103AQI
No. of days
202588AQI
Highest AQI recorded in
January115AQI
Lowest AQI recorded in
August61AQI
202486AQI
Highest AQI recorded in
October124AQI
Lowest AQI recorded in
January61AQI
202398AQI
Highest AQI recorded in
March125AQI
Lowest AQI recorded in
December54AQI
202297AQI
Highest AQI recorded in
January128AQI
Lowest AQI recorded in
August57AQI
2021109AQI
Highest AQI recorded in
March163AQI
Lowest AQI recorded in
July60AQI
2020115AQI
Highest AQI recorded in
December140AQI
Lowest AQI recorded in
March99AQI
Most & Least Polluted Years Over the Last 6 Years
Hejian Three Hospitals's annual 2025 AQI (88) shows an average percentage change of -11.7% (improved AQI) compared to previous years: 2020 (115), 2021 (109), 2022 (97), 2023 (98), 2024 (86).