Yongcheng, Henan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Yongcheng, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 61 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Yongcheng, Henan, China
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
75AQI
58AQI
65AQI
57AQI
In the last 24 hours,
Yongcheng's AQI reached its highest point of 75 at 8 AM during the Day, while the lowest point, 57, was recorded at 1 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yongcheng, Henan, China
32°C25/43°C
31°C25/39°C
31°C25/37°C
30°C25/37°C
31°C25/38°C
30°C25/36°C
32°C26/38°C
33°C27/39°C
33°C25/41°C
34°C29/40°C
31°C25/38°C
31°C24/38°C
32°C25/39°C
32°C26/39°C
30°C25/37°C
31°C27/38°C
31°C26/36°C
32°C26/38°C
31°C25/38°C
31°C24/38°C
31°C25/39°C
31°C24/38°C
29°C25/34°C
29°C24/36°C
29°C23/36°C
29°C25/36°C
30°C24/37°C
32°C24/40°C
32°C28/39°C
33°C27/39°C
--°C/°C
62AQI
62AQI
62AQI
62AQI
2025 Days Vs Air Quality
Yongcheng, Henan, China
47%
102
39%
85
13%
28
0.4%
1
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 218 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
Yongcheng, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
163AQI
181AQI
165AQI
187AQI
165AQI
116AQI
125AQI
108AQI
100AQI
108AQI
133AQI
130AQI
150AQI
162AQI
104AQI
140AQI
140AQI
158AQI
165AQI
171AQI
190AQI
186AQI
169AQI
166AQI
154AQI
140AQI
91AQI
125AQI
178AQI
159AQI
171AQI
166AQI
178AQI
170AQI
135AQI
105AQI
105AQI
75AQI
77AQI
93AQI
113AQI
144AQI
138AQI
140AQI
147AQI
142AQI
114AQI
110AQI
131AQI
133AQI
117AQI
120AQI
143AQI
118AQI
104AQI
132AQI
142AQI
154AQI
158AQI
167AQI
89AQI
96AQI
108AQI
128AQI
135AQI
136AQI
148AQI
153AQI
155AQI
162AQI
167AQI
141AQI
101AQI
134AQI
81AQI
93AQI
75AQI
95AQI
86AQI
83AQI
92AQI
112AQI
221AQI
120AQI
148AQI
128AQI
142AQI
104AQI
117AQI
116AQI
121AQI
102AQI
110AQI
132AQI
112AQI
119AQI
117AQI
136AQI
140AQI
141AQI
132AQI
169AQI
112AQI
98AQI
97AQI
104AQI
119AQI
127AQI
117AQI
112AQI
100AQI
109AQI
116AQI
98AQI
100AQI
99AQI
101AQI
91AQI
96AQI
96AQI
92AQI
100AQI
78AQI
89AQI
93AQI
110AQI
107AQI
108AQI
82AQI
81AQI
86AQI
84AQI
93AQI
98AQI
112AQI
113AQI
121AQI
98AQI
120AQI
112AQI
113AQI
109AQI
118AQI
104AQI
99AQI
103AQI
107AQI
104AQI
104AQI
99AQI
113AQI
90AQI
94AQI
92AQI
92AQI
90AQI
93AQI
91AQI
96AQI
86AQI
84AQI
86AQI
84AQI
86AQI
85AQI
75AQI
75AQI
78AQI
67AQI
60AQI
64AQI
69AQI
63AQI
66AQI
69AQI
74AQI
67AQI
65AQI
60AQI
51AQI
55AQI
56AQI
52AQI
54AQI
54AQI
55AQI
58AQI
63AQI
61AQI
53AQI
71AQI
83AQI
71AQI
72AQI
67AQI
69AQI
75AQI
69AQI
67AQI
69AQI
61AQI
62AQI
56AQI
57AQI
56AQI
59AQI
56AQI
56AQI
54AQI
53AQI
58AQI
57AQI
55AQI
52AQI
56AQI
61AQI
148AQI
129AQI
124AQI
114AQI
102AQI
77AQI
61AQI
56AQI
No. of days
2025107AQI
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
August56AQI
202494AQI
Highest AQI recorded in
January143AQI
Lowest AQI recorded in
July57AQI
2023123AQI
Highest AQI recorded in
December125AQI
Lowest AQI recorded in
November104AQI
2021134AQI
Highest AQI recorded in
January150AQI
Lowest AQI recorded in
March103AQI
2020112AQI
Highest AQI recorded in
December156AQI
Lowest AQI recorded in
July71AQI
Most & Least Polluted Years Over the Last 5 Years
Yongcheng's annual 2025 AQI (107) shows an average percentage change of -6.2% (improved AQI) compared to previous years: 2020 (112), 2021 (134), 2023 (123), 2024 (94).