Changyi Yizhong, Kuiju, 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
Changyi Yizhong, Kuiju, Shandong, China
AQI Trends: Highest and Lowest
Same Day Analysis (6th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 50 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: 5th Feb - 6th Feb 2026
Changyi Yizhong, Kuiju, Shandong, China
7 AM5th Feb 2026
5 PM
6 AM6th Feb 2026
186AQI
125AQI
82AQI
52AQI
In the last 24 hours,
Changyi Yizhong's AQI reached its highest point of 186 at 2 PM during the Day, while the lowest point, 52, was recorded at 8 PM during the Night between 5th Feb and 6th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Changyi Yizhong, Kuiju, Shandong, China
0°C-4/6°C
4°C-1/10°C
0°C-2/1°C
-3°C-5/-2°C
1°C-4/7°C
0°C-1/3°C
4°C0/10°C
6°C1/12°C
2°C-2/6°C
-2°C-5/2°C
-2°C-3/-1°C
-4°C-6/-2°C
-5°C-7/-2°C
-7°C-11/-3°C
-4°C-9/1°C
-2°C-6/3°C
-1°C-5/5°C
-1°C-3/3°C
0°C-3/5°C
-1°C-4/4°C
1°C-3/7°C
0°C-2/3°C
-1°C-3/4°C
0°C-3/5°C
2°C-3/8°C
0°C-2/3°C
3°C-2/9°C
7°C2/13°C
2°C-4/7°C
-5°C-7/-4°C
122AQI
99AQI
122AQI
97AQI
2026 Days Vs Air Quality
Changyi Yizhong, Kuiju, Shandong, China
8%
3
27%
10
43%
16
22%
8
Total number of days with different AQI categories in last 38 days in 2026 (327 days remaining)
Under WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2026, 8% of 38 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
Changyi Yizhong, Kuiju, Shandong, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
70AQI (US)
74AQI (US)
150AQI (US)
187AQI (US)
137AQI (US)
155AQI (US)
122AQI (US)
88AQI (US)
132AQI (US)
72AQI (US)
41AQI (US)
92AQI (US)
135AQI (US)
126AQI (US)
163AQI (US)
152AQI (US)
65AQI (US)
71AQI (US)
45AQI (US)
51AQI (US)
62AQI (US)
106AQI (US)
152AQI (US)
135AQI (US)
117AQI (US)
133AQI (US)
130AQI (US)
149AQI (US)
133AQI (US)
79AQI (US)
108AQI (US)
151AQI (US)
124AQI (US)
155AQI (US)
166AQI (US)
134AQI (US)
50AQI (US)
111AQI (US)
130AQI (US)
No. of days
2026114AQI (US)
Highest AQI (US) recorded in
February130AQI (US)
Lowest AQI (US) recorded in
January111AQI (US)
202590AQI (US)
Highest AQI (US) recorded in
January128AQI (US)
Lowest AQI (US) recorded in
August57AQI (US)
202498AQI (US)
Highest AQI (US) recorded in
January133AQI (US)
Lowest AQI (US) recorded in
September66AQI (US)
2023105AQI (US)
Highest AQI (US) recorded in
December137AQI (US)
Lowest AQI (US) recorded in
August69AQI (US)
2022102AQI (US)
Highest AQI (US) recorded in
January142AQI (US)
Lowest AQI (US) recorded in
June72AQI (US)
2021104AQI (US)
Highest AQI (US) recorded in
March156AQI (US)
Lowest AQI (US) recorded in
July66AQI (US)
2020101AQI (US)
Highest AQI (US) recorded in
December157AQI (US)
Lowest AQI (US) recorded in
August70AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Changyi Yizhong's annual 2026 AQI (US) (114) shows an average percentage change of 13.9% (worsened AQI (US)) compared to previous years: 2020 (101), 2021 (104), 2022 (102), 2023 (105), 2024 (98), 2025 (90).