Wendeng Development Zone Substation, Weihai, Shandong, 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
Wendeng Development Zone Substation, Weihai, Shandong, China
AQI Trends: Highest and Lowest
Same Day Analysis (6th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 40 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Wendeng Development Zone Substation, Weihai, Shandong, China
5 AM7th Oct 2025
5 PM
4 AM8th Oct 2025
AQI
AQI
46AQI
17AQI
In the last 24 hours,
Wendeng Development Zone Substation's AQI reached its highest point of 46 at 11 PM during the Night, while the lowest point, undefined, was recorded at 6 PM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Wendeng Development Zone Substation, Weihai, Shandong, China
22°C18/26°C
23°C19/29°C
23°C19/29°C
23°C19/30°C
22°C20/24°C
23°C20/27°C
24°C20/28°C
24°C21/28°C
24°C19/29°C
18°C16/21°C
20°C17/22°C
16°C14/16°C
18°C15/23°C
19°C16/24°C
19°C17/21°C
20°C18/21°C
20°C18/24°C
20°C16/26°C
21°C17/26°C
20°C17/24°C
19°C16/23°C
21°C18/26°C
20°C18/25°C
22°C18/27°C
19°C17/19°C
19°C18/20°C
21°C18/25°C
19°C18/20°C
19°C18/20°C
20°C17/23°C
--°C/°C
58AQI
47AQI
63AQI
49AQI
2025 Days Vs Air Quality
Wendeng Development Zone Substation, Weihai, Shandong, China
27%
75
65%
180
9%
24
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 27%
Health Risk Level:
Very high
In 2025, 27% of 281 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Wendeng Development Zone Substation, Weihai, Shandong, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
103AQI
72AQI
66AQI
98AQI
148AQI
65AQI
79AQI
48AQI
47AQI
54AQI
66AQI
90AQI
126AQI
102AQI
73AQI
82AQI
82AQI
122AQI
145AQI
98AQI
145AQI
83AQI
98AQI
75AQI
99AQI
92AQI
68AQI
62AQI
82AQI
65AQI
74AQI
79AQI
100AQI
57AQI
60AQI
50AQI
67AQI
40AQI
44AQI
58AQI
97AQI
63AQI
68AQI
86AQI
113AQI
85AQI
100AQI
53AQI
70AQI
53AQI
66AQI
62AQI
52AQI
56AQI
61AQI
107AQI
125AQI
138AQI
139AQI
100AQI
126AQI
65AQI
63AQI
56AQI
75AQI
82AQI
127AQI
139AQI
140AQI
93AQI
119AQI
78AQI
74AQI
73AQI
62AQI
69AQI
66AQI
80AQI
85AQI
69AQI
77AQI
97AQI
113AQI
115AQI
128AQI
89AQI
59AQI
52AQI
67AQI
99AQI
102AQI
77AQI
88AQI
77AQI
70AQI
69AQI
112AQI
60AQI
79AQI
71AQI
66AQI
83AQI
55AQI
44AQI
65AQI
87AQI
108AQI
74AQI
81AQI
71AQI
61AQI
56AQI
60AQI
53AQI
52AQI
68AQI
75AQI
60AQI
79AQI
76AQI
68AQI
53AQI
44AQI
50AQI
44AQI
49AQI
57AQI
50AQI
53AQI
60AQI
68AQI
77AQI
78AQI
70AQI
72AQI
54AQI
58AQI
58AQI
85AQI
87AQI
66AQI
101AQI
78AQI
80AQI
74AQI
84AQI
89AQI
68AQI
73AQI
72AQI
72AQI
73AQI
61AQI
45AQI
40AQI
64AQI
67AQI
71AQI
59AQI
44AQI
45AQI
42AQI
36AQI
34AQI
36AQI
51AQI
56AQI
51AQI
58AQI
44AQI
45AQI
51AQI
36AQI
49AQI
56AQI
56AQI
62AQI
64AQI
66AQI
54AQI
47AQI
51AQI
49AQI
55AQI
61AQI
61AQI
61AQI
56AQI
44AQI
59AQI
61AQI
55AQI
55AQI
57AQI
48AQI
47AQI
52AQI
48AQI
49AQI
48AQI
39AQI
35AQI
33AQI
31AQI
44AQI
37AQI
45AQI
42AQI
38AQI
31AQI
34AQI
40AQI
52AQI
52AQI
47AQI
46AQI
45AQI
44AQI
45AQI
43AQI
36AQI
40AQI
45AQI
43AQI
48AQI
46AQI
42AQI
43AQI
52AQI
57AQI
55AQI
55AQI
51AQI
54AQI
63AQI
55AQI
57AQI
50AQI
55AQI
49AQI
52AQI
46AQI
44AQI
51AQI
62AQI
59AQI
41AQI
46AQI
46AQI
51AQI
58AQI
67AQI
63AQI
62AQI
52AQI
52AQI
54AQI
48AQI
53AQI
40AQI
36AQI
39AQI
45AQI
43AQI
37AQI
32AQI
46AQI
79AQI
95AQI
70AQI
74AQI
80AQI
68AQI
82AQI
63AQI
38AQI
56AQI
65AQI
40AQI
87AQI
77AQI
88AQI
73AQI
67AQI
52AQI
47AQI
49AQI
55AQI
57AQI
No. of days
202566AQI
Highest AQI recorded in
March88AQI
Lowest AQI recorded in
July47AQI
202470AQI
Highest AQI recorded in
March98AQI
Lowest AQI recorded in
September50AQI
202376AQI
Highest AQI recorded in
March106AQI
Lowest AQI recorded in
August52AQI
202268AQI
Highest AQI recorded in
December87AQI
Lowest AQI recorded in
September51AQI
202189AQI
Highest AQI recorded in
January89AQI
Lowest AQI recorded in
February88AQI
202066AQI
Highest AQI recorded in
December94AQI
Lowest AQI recorded in
August53AQI
Most & Least Polluted Years Over the Last 6 Years
Wendeng Development Zone Substation's annual 2025 AQI (66) shows an average percentage change of -9.6% (improved AQI) compared to previous years: 2020 (66), 2021 (89), 2022 (68), 2023 (76), 2024 (70).