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!
February Air Quality Analysis
Wendeng Development Zone Substation, Weihai, Shandong, China
AQI Trends: Highest and Lowest
Same Day Analysis (8th February):
On this day, AQI across the 4 years varied significantly: 2026 ranks 4th highest AQI at 33 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Feb - 8th Feb 2026
Wendeng Development Zone Substation, Weihai, Shandong, China
7 AM7th Feb 2026
5 PM
6 AM8th Feb 2026
69AQI
49AQI
33AQI
15AQI
In the last 24 hours,
Wendeng Development Zone Substation's AQI reached its highest point of 69 at 2 PM during the Day, while the lowest point, 15, was recorded at 9 PM during the Night between 7th Feb and 8th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Wendeng Development Zone Substation, Weihai, Shandong, China
-1°C-4/0°C
-5°C-7/-2°C
-1°C-7/6°C
-2°C-4/1°C
3°C-4/8°C
3°C1/8°C
2°C-2/8°C
-3°C-4/0°C
-2°C-3/1°C
-5°C-8/-3°C
-6°C-8/-5°C
-7°C-10/-4°C
-7°C-11/0°C
-5°C-10/2°C
-5°C-9/2°C
-6°C-9/-2°C
-4°C-9/2°C
-5°C-8/-1°C
-4°C-9/1°C
-3°C-6/0°C
-4°C-7/-1°C
-3°C-7/2°C
-2°C-7/5°C
-2°C-5/1°C
0°C-5/7°C
4°C0/9°C
1°C-5/6°C
-8°C-9/-7°C
-6°C-9/-3°C
-4°C-7/0°C
77AQI
70AQI
82AQI
66AQI
2026 Days Vs Air Quality
Wendeng Development Zone Substation, Weihai, Shandong, China
36%
14
36%
14
26%
10
3%
1
Total number of days with different AQI categories in last 40 days in 2026 (325 days remaining)
Under WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2026, 36% of 40 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Wendeng Development Zone Substation, Weihai, Shandong, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
40AQI (US)
48AQI (US)
120AQI (US)
178AQI (US)
73AQI (US)
106AQI (US)
96AQI (US)
65AQI (US)
101AQI (US)
68AQI (US)
34AQI (US)
72AQI (US)
87AQI (US)
42AQI (US)
132AQI (US)
143AQI (US)
45AQI (US)
38AQI (US)
41AQI (US)
33AQI (US)
49AQI (US)
75AQI (US)
138AQI (US)
87AQI (US)
75AQI (US)
70AQI (US)
78AQI (US)
72AQI (US)
46AQI (US)
39AQI (US)
79AQI (US)
119AQI (US)
69AQI (US)
130AQI (US)
148AQI (US)
116AQI (US)
43AQI (US)
38AQI (US)
33AQI (US)
76AQI (US)
87AQI (US)
No. of days
202679AQI (US)
Highest AQI (US) recorded in
February87AQI (US)
Lowest AQI (US) recorded in
January76AQI (US)
202568AQI (US)
Highest AQI (US) recorded in
November93AQI (US)
Lowest AQI (US) recorded in
July47AQI (US)
202470AQI (US)
Highest AQI (US) recorded in
March98AQI (US)
Lowest AQI (US) recorded in
September50AQI (US)
202376AQI (US)
Highest AQI (US) recorded in
March106AQI (US)
Lowest AQI (US) recorded in
August52AQI (US)
202268AQI (US)
Highest AQI (US) recorded in
December87AQI (US)
Lowest AQI (US) recorded in
September51AQI (US)
202189AQI (US)
Highest AQI (US) recorded in
January89AQI (US)
Lowest AQI (US) recorded in
February88AQI (US)
202066AQI (US)
Highest AQI (US) recorded in
December94AQI (US)
Lowest AQI (US) recorded in
August53AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Wendeng Development Zone Substation's annual 2026 AQI (US) (79) shows an average percentage change of 8.9% (worsened AQI (US)) compared to previous years: 2020 (66), 2021 (89), 2022 (68), 2023 (76), 2024 (70), 2025 (68).