Yongning, Chengdu, Sichuan, 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
Yongning, Chengdu, Sichuan, China
AQI Trends: Highest and Lowest
Same Day Analysis (6th February):
On this day, AQI across the 2 years varied significantly: 2026 ranks 1st highest AQI at 158 of Unhealthy air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Feb - 6th Feb 2026
Yongning, Chengdu, Sichuan, China
8 AM5th Feb 2026
6 PM
7 AM6th Feb 2026
168AQI
152AQI
163AQI
153AQI
In the last 24 hours,
Yongning's AQI reached its highest point of 168 at 11 AM during the Day, while the lowest point, 152, was recorded at 6 PM during the Day between 5th Feb and 6th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Yongning, Chengdu, Sichuan, China
8°C4/12°C
8°C5/13°C
9°C5/14°C
10°C6/13°C
11°C7/15°C
11°C7/15°C
13°C11/18°C
12°C8/17°C
12°C8/17°C
13°C9/18°C
13°C9/18°C
11°C6/13°C
6°C3/8°C
5°C3/7°C
5°C2/9°C
6°C4/9°C
7°C4/10°C
7°C6/10°C
9°C5/14°C
9°C6/12°C
11°C9/13°C
10°C9/13°C
9°C7/11°C
8°C6/11°C
9°C5/13°C
10°C5/14°C
11°C8/14°C
11°C9/13°C
11°C7/16°C
13°C8/17°C
147AQI
139AQI
148AQI
142AQI
2026 Days Vs Air Quality
Yongning, Chengdu, Sichuan, China
3%
1
19%
7
35%
13
43%
16
Total number of days with different AQI categories in last 38 days in 2026 (327 days remaining)
Under WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2026, 3% 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
Yongning, Chengdu, Sichuan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
83AQI (US)
86AQI (US)
32AQI (US)
58AQI (US)
115AQI (US)
90AQI (US)
134AQI (US)
138AQI (US)
152AQI (US)
168AQI (US)
184AQI (US)
189AQI (US)
189AQI (US)
170AQI (US)
157AQI (US)
167AQI (US)
173AQI (US)
182AQI (US)
104AQI (US)
62AQI (US)
82AQI (US)
113AQI (US)
117AQI (US)
151AQI (US)
147AQI (US)
118AQI (US)
120AQI (US)
159AQI (US)
134AQI (US)
88AQI (US)
145AQI (US)
141AQI (US)
136AQI (US)
152AQI (US)
153AQI (US)
160AQI (US)
158AQI (US)
129AQI (US)
150AQI (US)
No. of days
2026133AQI (US)
Highest AQI (US) recorded in
February150AQI (US)
Lowest AQI (US) recorded in
January129AQI (US)
202582AQI (US)
Highest AQI (US) recorded in
December142AQI (US)
Lowest AQI (US) recorded in
July54AQI (US)
202469AQI (US)
Highest AQI (US) recorded in
December122AQI (US)
Lowest AQI (US) recorded in
January39AQI (US)
202369AQI (US)
Highest AQI (US) recorded in
December69AQI (US)
Lowest AQI (US) recorded in
November67AQI (US)
2021150AQI (US)
Highest AQI (US) recorded in
January157AQI (US)
Lowest AQI (US) recorded in
February142AQI (US)
202096AQI (US)
Highest AQI (US) recorded in
December142AQI (US)
Lowest AQI (US) recorded in
July70AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Yongning's annual 2026 AQI (US) (133) shows an average percentage change of 54.9% (worsened AQI (US)) compared to previous years: 2020 (96), 2021 (150), 2023 (69), 2024 (69), 2025 (82).