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
Qinhuangdao, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 69 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Qinhuangdao, Hebei, China
5 AM5th Oct 2025
6 PM
4 AM6th Oct 2025
105AQI
50AQI
106AQI
50AQI
In the last 24 hours,
Qinhuangdao's AQI reached its highest point of 106 at 5 AM during the Night, while the lowest point, 50, was recorded at 1 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Qinhuangdao, Hebei, China
23°C19/29°C
23°C18/28°C
23°C19/28°C
23°C19/28°C
23°C18/28°C
24°C21/28°C
23°C20/27°C
23°C19/28°C
24°C20/30°C
22°C18/25°C
22°C18/28°C
18°C13/22°C
19°C13/24°C
18°C15/21°C
19°C13/25°C
20°C16/24°C
19°C17/23°C
19°C17/23°C
19°C14/26°C
22°C16/28°C
22°C18/28°C
20°C17/22°C
21°C15/27°C
22°C17/28°C
22°C17/29°C
23°C18/29°C
22°C19/28°C
19°C17/23°C
20°C16/26°C
18°C15/19°C
--°C/°C
74AQI
64AQI
82AQI
72AQI
2025 Days Vs Air Quality
Qinhuangdao, Hebei, China
3%
8
73%
201
23%
63
2%
5
Total number of days with different AQI categories in last 279 days in 2025 (86 days remaining)
Under WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% 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
Qinhuangdao, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
78AQI
74AQI
67AQI
118AQI
108AQI
81AQI
68AQI
57AQI
58AQI
64AQI
74AQI
89AQI
104AQI
71AQI
72AQI
70AQI
101AQI
135AQI
93AQI
132AQI
92AQI
103AQI
106AQI
137AQI
133AQI
149AQI
79AQI
106AQI
109AQI
94AQI
100AQI
113AQI
135AQI
72AQI
79AQI
58AQI
67AQI
48AQI
54AQI
68AQI
112AQI
132AQI
86AQI
122AQI
125AQI
123AQI
80AQI
77AQI
73AQI
73AQI
71AQI
66AQI
68AQI
58AQI
76AQI
92AQI
87AQI
149AQI
172AQI
161AQI
103AQI
90AQI
102AQI
122AQI
78AQI
101AQI
131AQI
159AQI
158AQI
169AQI
94AQI
105AQI
82AQI
79AQI
65AQI
69AQI
63AQI
75AQI
60AQI
60AQI
62AQI
93AQI
64AQI
92AQI
121AQI
91AQI
94AQI
79AQI
83AQI
114AQI
111AQI
85AQI
102AQI
108AQI
79AQI
98AQI
121AQI
88AQI
98AQI
119AQI
115AQI
100AQI
83AQI
82AQI
92AQI
106AQI
115AQI
86AQI
100AQI
103AQI
110AQI
81AQI
102AQI
71AQI
84AQI
103AQI
77AQI
92AQI
106AQI
106AQI
83AQI
85AQI
71AQI
78AQI
87AQI
81AQI
99AQI
89AQI
82AQI
81AQI
111AQI
114AQI
111AQI
104AQI
98AQI
102AQI
84AQI
89AQI
102AQI
114AQI
101AQI
125AQI
93AQI
90AQI
92AQI
101AQI
115AQI
105AQI
103AQI
111AQI
118AQI
103AQI
110AQI
74AQI
76AQI
81AQI
85AQI
77AQI
79AQI
82AQI
73AQI
84AQI
79AQI
78AQI
77AQI
71AQI
66AQI
71AQI
67AQI
65AQI
60AQI
55AQI
52AQI
63AQI
63AQI
62AQI
65AQI
64AQI
64AQI
76AQI
70AQI
67AQI
71AQI
57AQI
71AQI
71AQI
60AQI
62AQI
61AQI
61AQI
64AQI
64AQI
63AQI
59AQI
56AQI
57AQI
56AQI
52AQI
54AQI
52AQI
54AQI
60AQI
63AQI
51AQI
50AQI
57AQI
59AQI
57AQI
54AQI
49AQI
52AQI
55AQI
60AQI
60AQI
57AQI
53AQI
57AQI
63AQI
54AQI
49AQI
49AQI
49AQI
58AQI
63AQI
57AQI
62AQI
64AQI
59AQI
58AQI
62AQI
59AQI
60AQI
61AQI
56AQI
60AQI
59AQI
57AQI
56AQI
59AQI
53AQI
63AQI
62AQI
58AQI
63AQI
71AQI
75AQI
76AQI
74AQI
69AQI
70AQI
67AQI
77AQI
70AQI
74AQI
76AQI
72AQI
75AQI
65AQI
64AQI
49AQI
50AQI
61AQI
62AQI
62AQI
60AQI
59AQI
76AQI
88AQI
89AQI
102AQI
101AQI
73AQI
96AQI
113AQI
98AQI
66AQI
69AQI
94AQI
91AQI
97AQI
97AQI
97AQI
73AQI
59AQI
58AQI
72AQI
87AQI
No. of days
202582AQI
Highest AQI recorded in
April97AQI
Lowest AQI recorded in
August58AQI
202486AQI
Highest AQI recorded in
March109AQI
Lowest AQI recorded in
September59AQI
202389AQI
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
August60AQI
202283AQI
Highest AQI recorded in
January108AQI
Lowest AQI recorded in
July57AQI
202183AQI
Highest AQI recorded in
March141AQI
Lowest AQI recorded in
September44AQI
202087AQI
Highest AQI recorded in
October102AQI
Lowest AQI recorded in
September68AQI
Most & Least Polluted Years Over the Last 6 Years
Qinhuangdao's annual 2025 AQI (82) shows an average percentage change of -4.1% (improved AQI) compared to previous years: 2020 (87), 2021 (83), 2022 (83), 2023 (89), 2024 (86).