Environmental Monitoring Station, Hengshui, 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
Environmental Monitoring Station, Hengshui, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (14th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 77 of Moderate air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Oct - 15th Oct 2025
Environmental Monitoring Station, Hengshui, Hebei, China
6 AM14th Oct 2025
6 PM
5 AM15th Oct 2025
109AQI
58AQI
144AQI
75AQI
In the last 24 hours,
Environmental Monitoring Station's AQI reached its highest point of 144 at 4 AM during the Night, while the lowest point, 58, was recorded at 3 PM during the Day between 14th Oct and 15th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Environmental Monitoring Station, Hengshui, Hebei, China
26°C22/31°C
23°C21/25°C
17°C14/19°C
18°C12/24°C
14°C12/16°C
19°C12/27°C
21°C16/27°C
16°C15/17°C
15°C14/17°C
20°C13/28°C
22°C16/29°C
22°C17/28°C
19°C17/22°C
22°C16/28°C
23°C18/29°C
24°C18/32°C
24°C20/29°C
19°C17/22°C
20°C15/25°C
21°C17/27°C
18°C15/19°C
14°C12/16°C
17°C14/22°C
15°C9/17°C
10°C9/10°C
9°C8/10°C
13°C9/17°C
13°C12/14°C
15°C11/20°C
17°C12/22°C
--°C/°C
81AQI
64AQI
77AQI
70AQI
2025 Days Vs Air Quality
Environmental Monitoring Station, Hengshui, Hebei, China
1%
3
74%
213
21%
60
4%
11
Total number of days with different AQI categories in last 288 days in 2025 (77 days remaining)
Under WHO’s Safe Air Quality Limits: 1%
Health Risk Level:
Extreme
In 2025, 1% of 288 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
Environmental Monitoring Station, Hengshui, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
163AQI
88AQI
137AQI
148AQI
136AQI
81AQI
85AQI
58AQI
61AQI
87AQI
121AQI
92AQI
139AQI
99AQI
85AQI
90AQI
115AQI
143AQI
126AQI
143AQI
164AQI
104AQI
144AQI
132AQI
159AQI
121AQI
80AQI
98AQI
177AQI
130AQI
155AQI
145AQI
163AQI
92AQI
84AQI
60AQI
133AQI
50AQI
57AQI
89AQI
123AQI
144AQI
91AQI
130AQI
129AQI
138AQI
84AQI
76AQI
87AQI
96AQI
127AQI
113AQI
106AQI
69AQI
97AQI
94AQI
136AQI
144AQI
172AQI
182AQI
121AQI
98AQI
88AQI
117AQI
75AQI
142AQI
136AQI
155AQI
157AQI
164AQI
142AQI
146AQI
125AQI
98AQI
73AQI
72AQI
56AQI
71AQI
54AQI
58AQI
67AQI
110AQI
96AQI
89AQI
110AQI
103AQI
95AQI
63AQI
83AQI
91AQI
82AQI
58AQI
85AQI
119AQI
59AQI
104AQI
126AQI
121AQI
111AQI
123AQI
146AQI
142AQI
80AQI
76AQI
73AQI
102AQI
123AQI
73AQI
93AQI
102AQI
99AQI
76AQI
99AQI
64AQI
90AQI
92AQI
81AQI
77AQI
71AQI
94AQI
62AQI
84AQI
54AQI
73AQI
111AQI
77AQI
111AQI
100AQI
77AQI
74AQI
69AQI
76AQI
90AQI
79AQI
63AQI
118AQI
75AQI
95AQI
111AQI
112AQI
107AQI
130AQI
122AQI
88AQI
88AQI
89AQI
92AQI
97AQI
92AQI
93AQI
98AQI
130AQI
109AQI
72AQI
63AQI
72AQI
89AQI
88AQI
83AQI
95AQI
73AQI
85AQI
87AQI
92AQI
89AQI
68AQI
54AQI
58AQI
66AQI
59AQI
68AQI
65AQI
56AQI
61AQI
62AQI
69AQI
73AQI
81AQI
73AQI
74AQI
71AQI
62AQI
64AQI
57AQI
63AQI
60AQI
56AQI
58AQI
60AQI
66AQI
76AQI
79AQI
78AQI
71AQI
66AQI
70AQI
69AQI
68AQI
66AQI
75AQI
66AQI
71AQI
61AQI
50AQI
59AQI
63AQI
60AQI
54AQI
64AQI
54AQI
56AQI
56AQI
63AQI
62AQI
65AQI
63AQI
63AQI
69AQI
72AQI
70AQI
58AQI
58AQI
63AQI
64AQI
64AQI
69AQI
66AQI
54AQI
58AQI
63AQI
62AQI
59AQI
58AQI
58AQI
56AQI
56AQI
56AQI
62AQI
62AQI
55AQI
62AQI
61AQI
58AQI
55AQI
66AQI
67AQI
73AQI
72AQI
67AQI
70AQI
73AQI
69AQI
69AQI
71AQI
69AQI
78AQI
74AQI
75AQI
71AQI
56AQI
56AQI
52AQI
68AQI
72AQI
64AQI
70AQI
81AQI
90AQI
82AQI
77AQI
99AQI
119AQI
108AQI
118AQI
78AQI
64AQI
73AQI
63AQI
51AQI
78AQI
78AQI
45AQI
53AQI
56AQI
83AQI
52AQI
77AQI
118AQI
108AQI
104AQI
95AQI
91AQI
76AQI
64AQI
62AQI
74AQI
69AQI
No. of days
202587AQI
Highest AQI recorded in
January118AQI
Lowest AQI recorded in
August62AQI
2024100AQI
Highest AQI recorded in
January134AQI
Lowest AQI recorded in
August66AQI
2023107AQI
Highest AQI recorded in
January146AQI
Lowest AQI recorded in
August61AQI
2022109AQI
Highest AQI recorded in
January151AQI
Lowest AQI recorded in
July65AQI
2021107AQI
Highest AQI recorded in
March167AQI
Lowest AQI recorded in
July54AQI
2020111AQI
Highest AQI recorded in
December149AQI
Lowest AQI recorded in
August90AQI
Most & Least Polluted Years Over the Last 6 Years
Environmental Monitoring Station's annual 2025 AQI (87) shows an average percentage change of -18.7% (improved AQI) compared to previous years: 2020 (111), 2021 (107), 2022 (109), 2023 (107), 2024 (100).