Qihe County Martyrs Memorial Hall, Yucheng, 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
Qihe County Martyrs Memorial Hall, Yucheng, Shandong, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 128 of Poor air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Feb - 18th Feb 2026
Qihe County Martyrs Memorial Hall, Yucheng, Shandong, China
7 AM17th Feb 2026
5 PM
6 AM18th Feb 2026
154AQI
90AQI
157AQI
108AQI
In the last 24 hours,
Qihe County Martyrs Memorial Hall's AQI reached its highest point of 157 at 1 AM during the Night, while the lowest point, 90, was recorded at 12 PM during the Day between 17th Feb and 18th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Qihe County Martyrs Memorial Hall, Yucheng, Shandong, China
-6°C-10/-2°C
-7°C-13/-2°C
-3°C-7/3°C
-1°C-5/5°C
1°C-4/7°C
1°C-2/6°C
1°C-3/5°C
2°C-3/6°C
3°C-2/7°C
2°C-1/3°C
1°C-2/4°C
2°C-2/6°C
4°C-1/10°C
2°C-3/6°C
5°C0/9°C
8°C2/13°C
5°C-2/9°C
-3°C-5/-1°C
-3°C-7/2°C
-1°C-7/6°C
3°C-1/8°C
5°C1/10°C
6°C0/12°C
9°C3/15°C
11°C5/18°C
13°C7/20°C
5°C1/7°C
2°C-3/7°C
5°C-1/12°C
7°C1/13°C
127AQI
113AQI
129AQI
116AQI
2026 Days Vs Air Quality
Qihe County Martyrs Memorial Hall, Yucheng, Shandong, China
6%
3
29%
14
43%
21
22%
11
Total number of days with different AQI categories in last 50 days in 2026 (315 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2026, 6% of 50 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
Qihe County Martyrs Memorial Hall, Yucheng, Shandong, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
57AQI (US)
80AQI (US)
148AQI (US)
164AQI (US)
169AQI (US)
182AQI (US)
105AQI (US)
69AQI (US)
112AQI (US)
75AQI (US)
42AQI (US)
91AQI (US)
135AQI (US)
158AQI (US)
169AQI (US)
150AQI (US)
85AQI (US)
80AQI (US)
50AQI (US)
29AQI (US)
70AQI (US)
101AQI (US)
129AQI (US)
144AQI (US)
151AQI (US)
112AQI (US)
156AQI (US)
154AQI (US)
147AQI (US)
140AQI (US)
175AQI (US)
178AQI (US)
139AQI (US)
145AQI (US)
158AQI (US)
141AQI (US)
60AQI (US)
73AQI (US)
92AQI (US)
99AQI (US)
115AQI (US)
131AQI (US)
140AQI (US)
136AQI (US)
138AQI (US)
94AQI (US)
86AQI (US)
142AQI (US)
128AQI (US)
117AQI (US)
122AQI (US)
No. of days
2026119AQI (US)
Highest AQI (US) recorded in
February122AQI (US)
Lowest AQI (US) recorded in
January117AQI (US)
202592AQI (US)
Highest AQI (US) recorded in
January124AQI (US)
Lowest AQI (US) recorded in
July60AQI (US)
202496AQI (US)
Highest AQI (US) recorded in
January136AQI (US)
Lowest AQI (US) recorded in
August65AQI (US)
2023101AQI (US)
Highest AQI (US) recorded in
January141AQI (US)
Lowest AQI (US) recorded in
July66AQI (US)
202297AQI (US)
Highest AQI (US) recorded in
January151AQI (US)
Lowest AQI (US) recorded in
July67AQI (US)
2021109AQI (US)
Highest AQI (US) recorded in
March177AQI (US)
Lowest AQI (US) recorded in
July58AQI (US)
2020105AQI (US)
Highest AQI (US) recorded in
December151AQI (US)
Lowest AQI (US) recorded in
August84AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Qihe County Martyrs Memorial Hall's annual 2026 AQI (US) (119) shows an average percentage change of 19.3% (worsened AQI (US)) compared to previous years: 2020 (105), 2021 (109), 2022 (97), 2023 (101), 2024 (96), 2025 (92).