Shanhaiguan District Government, Qinhuangdao, 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
Shanhaiguan District Government, Qinhuangdao, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 2nd highest AQI at 68 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Shanhaiguan District Government, Qinhuangdao, Hebei, China
5 AM4th Oct 2025
6 PM
4 AM5th Oct 2025
AQI
AQI
128AQI
58AQI
In the last 24 hours,
Shanhaiguan District Government's AQI reached its highest point of 128 at 1 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Shanhaiguan District Government, Qinhuangdao, Hebei, China
23°C20/27°C
23°C19/29°C
23°C19/28°C
23°C20/28°C
23°C19/28°C
23°C19/27°C
23°C21/27°C
23°C20/27°C
23°C19/27°C
23°C19/30°C
22°C18/25°C
22°C17/28°C
18°C14/23°C
19°C15/24°C
19°C16/23°C
19°C15/24°C
20°C17/24°C
20°C19/24°C
20°C18/23°C
20°C15/25°C
22°C17/28°C
22°C19/27°C
20°C18/23°C
21°C16/27°C
22°C18/28°C
22°C17/27°C
23°C19/29°C
22°C19/27°C
19°C17/23°C
--°C/°C
--°C/°C
83AQI
68AQI
88AQI
77AQI
2025 Days Vs Air Quality
Shanhaiguan District Government, Qinhuangdao, Hebei, China
3%
8
77%
213
18%
50
2%
6
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% of 277 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
Shanhaiguan District Government, Qinhuangdao, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
82AQI
82AQI
70AQI
123AQI
112AQI
89AQI
71AQI
60AQI
62AQI
68AQI
82AQI
99AQI
112AQI
76AQI
76AQI
72AQI
106AQI
137AQI
100AQI
138AQI
97AQI
105AQI
113AQI
137AQI
136AQI
150AQI
81AQI
106AQI
112AQI
98AQI
101AQI
115AQI
138AQI
74AQI
85AQI
59AQI
69AQI
48AQI
55AQI
72AQI
115AQI
133AQI
84AQI
125AQI
128AQI
128AQI
84AQI
77AQI
74AQI
75AQI
73AQI
70AQI
70AQI
59AQI
79AQI
95AQI
89AQI
151AQI
174AQI
162AQI
103AQI
89AQI
102AQI
118AQI
76AQI
99AQI
134AQI
159AQI
159AQI
167AQI
92AQI
103AQI
81AQI
80AQI
67AQI
72AQI
63AQI
82AQI
63AQI
63AQI
64AQI
97AQI
66AQI
92AQI
119AQI
78AQI
83AQI
64AQI
70AQI
110AQI
106AQI
71AQI
91AQI
97AQI
62AQI
86AQI
118AQI
75AQI
86AQI
113AQI
105AQI
97AQI
67AQI
70AQI
85AQI
100AQI
113AQI
70AQI
91AQI
92AQI
100AQI
66AQI
94AQI
57AQI
69AQI
95AQI
63AQI
78AQI
101AQI
101AQI
70AQI
72AQI
60AQI
68AQI
78AQI
72AQI
92AQI
79AQI
75AQI
70AQI
107AQI
108AQI
106AQI
95AQI
85AQI
87AQI
73AQI
79AQI
94AQI
108AQI
89AQI
121AQI
79AQI
82AQI
78AQI
97AQI
113AQI
98AQI
97AQI
104AQI
112AQI
93AQI
106AQI
59AQI
64AQI
69AQI
77AQI
67AQI
65AQI
71AQI
58AQI
72AQI
67AQI
63AQI
63AQI
57AQI
54AQI
62AQI
66AQI
64AQI
59AQI
52AQI
50AQI
64AQI
62AQI
61AQI
64AQI
64AQI
61AQI
77AQI
70AQI
67AQI
71AQI
55AQI
71AQI
72AQI
58AQI
61AQI
62AQI
59AQI
64AQI
63AQI
64AQI
59AQI
53AQI
56AQI
55AQI
51AQI
51AQI
51AQI
55AQI
60AQI
63AQI
51AQI
51AQI
58AQI
59AQI
57AQI
56AQI
48AQI
50AQI
56AQI
61AQI
60AQI
58AQI
51AQI
58AQI
61AQI
54AQI
47AQI
52AQI
50AQI
57AQI
63AQI
57AQI
62AQI
64AQI
58AQI
58AQI
60AQI
59AQI
60AQI
61AQI
53AQI
60AQI
58AQI
56AQI
55AQI
58AQI
54AQI
63AQI
61AQI
57AQI
62AQI
69AQI
76AQI
80AQI
77AQI
68AQI
69AQI
67AQI
77AQI
69AQI
73AQI
77AQI
73AQI
75AQI
66AQI
64AQI
49AQI
49AQI
61AQI
64AQI
62AQI
60AQI
60AQI
77AQI
94AQI
111AQI
124AQI
103AQI
84AQI
115AQI
115AQI
117AQI
71AQI
68AQI
98AQI
93AQI
96AQI
87AQI
89AQI
66AQI
58AQI
58AQI
75AQI
93AQI
No. of days
202580AQI
Highest AQI recorded in
January98AQI
Lowest AQI recorded in
August58AQI
202479AQI
Highest AQI recorded in
March163AQI
Lowest AQI recorded in
April42AQI
2023110AQI
Highest AQI recorded in
March132AQI
Lowest AQI recorded in
November58AQI
202285AQI
Highest AQI recorded in
November97AQI
Lowest AQI recorded in
July70AQI
202188AQI
Highest AQI recorded in
March138AQI
Lowest AQI recorded in
July56AQI
202089AQI
Highest AQI recorded in
June100AQI
Lowest AQI recorded in
September77AQI
Most & Least Polluted Years Over the Last 6 Years
Shanhaiguan District Government's annual 2025 AQI (80) shows an average percentage change of -9.9% (improved AQI) compared to previous years: 2020 (89), 2021 (88), 2022 (85), 2023 (110), 2024 (79).