Automatic Station Of Yongcheng Archives , 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
Automatic Station Of Yongcheng Archives , Yongcheng, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025
Automatic Station Of Yongcheng Archives , Yongcheng, Henan, China
5 AM21st Aug 2025
7 PM
4 AM22nd Aug 2025
AQI
AQI
66AQI
43AQI
In the last 24 hours,
Automatic Station Of Yongcheng Archives 's AQI reached its highest point of 66 at 10 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 21st Aug and 22nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Automatic Station Of Yongcheng Archives , Yongcheng, Henan, China
30°C26/34°C
31°C26/37°C
31°C25/36°C
30°C25/36°C
30°C25/37°C
29°C24/35°C
29°C24/36°C
29°C25/35°C
27°C24/32°C
28°C25/31°C
29°C24/34°C
30°C24/37°C
32°C27/37°C
32°C27/38°C
31°C26/39°C
29°C27/33°C
29°C26/34°C
26°C25/30°C
25°C23/27°C
24°C21/28°C
24°C21/29°C
26°C24/30°C
27°C23/31°C
29°C26/34°C
30°C26/35°C
30°C26/35°C
30°C26/35°C
31°C26/36°C
31°C27/36°C
--°C/°C
--°C/°C
59AQI
50AQI
59AQI
57AQI
2025 Days Vs Air Quality
Automatic Station Of Yongcheng Archives , Yongcheng, Henan, China
0.8%
2
52%
121
35%
82
12%
27
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 0.86%
Health Risk Level:
Extreme
In 2025, 0.86% of 233 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
Automatic Station Of Yongcheng Archives , Yongcheng, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
162AQI
194AQI
165AQI
186AQI
167AQI
117AQI
126AQI
115AQI
101AQI
109AQI
134AQI
135AQI
152AQI
146AQI
104AQI
144AQI
141AQI
159AQI
167AQI
170AQI
184AQI
182AQI
165AQI
147AQI
144AQI
138AQI
90AQI
123AQI
160AQI
155AQI
170AQI
166AQI
176AQI
171AQI
141AQI
108AQI
106AQI
75AQI
78AQI
92AQI
112AQI
142AQI
142AQI
143AQI
150AQI
140AQI
124AQI
107AQI
133AQI
131AQI
115AQI
116AQI
142AQI
125AQI
105AQI
135AQI
146AQI
153AQI
159AQI
163AQI
94AQI
99AQI
111AQI
133AQI
136AQI
140AQI
150AQI
153AQI
155AQI
162AQI
169AQI
143AQI
100AQI
133AQI
82AQI
93AQI
76AQI
96AQI
93AQI
87AQI
96AQI
119AQI
173AQI
116AQI
133AQI
117AQI
129AQI
95AQI
107AQI
108AQI
111AQI
95AQI
100AQI
121AQI
106AQI
110AQI
106AQI
128AQI
136AQI
136AQI
126AQI
182AQI
107AQI
96AQI
92AQI
96AQI
109AQI
117AQI
110AQI
105AQI
97AQI
101AQI
107AQI
92AQI
91AQI
92AQI
92AQI
88AQI
89AQI
92AQI
89AQI
97AQI
78AQI
87AQI
90AQI
110AQI
106AQI
107AQI
81AQI
79AQI
83AQI
81AQI
91AQI
100AQI
118AQI
108AQI
113AQI
96AQI
114AQI
109AQI
106AQI
104AQI
123AQI
104AQI
100AQI
102AQI
107AQI
103AQI
104AQI
98AQI
114AQI
89AQI
94AQI
91AQI
93AQI
88AQI
90AQI
86AQI
91AQI
83AQI
84AQI
85AQI
84AQI
85AQI
83AQI
73AQI
73AQI
74AQI
64AQI
58AQI
64AQI
71AQI
73AQI
70AQI
71AQI
71AQI
69AQI
66AQI
61AQI
52AQI
56AQI
56AQI
53AQI
58AQI
56AQI
57AQI
61AQI
65AQI
60AQI
54AQI
74AQI
84AQI
73AQI
72AQI
67AQI
70AQI
76AQI
69AQI
68AQI
68AQI
61AQI
61AQI
58AQI
57AQI
57AQI
60AQI
56AQI
56AQI
54AQI
54AQI
58AQI
56AQI
54AQI
51AQI
56AQI
61AQI
63AQI
66AQI
63AQI
59AQI
56AQI
58AQI
46AQI
50AQI
54AQI
57AQI
59AQI
53AQI
58AQI
60AQI
58AQI
55AQI
147AQI
130AQI
121AQI
108AQI
100AQI
76AQI
62AQI
57AQI
No. of days
2025102AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
August57AQI
202492AQI
Highest AQI recorded in
January161AQI
Lowest AQI recorded in
July57AQI
2023140AQI
Highest AQI recorded in
December143AQI
Lowest AQI recorded in
November111AQI
2021127AQI
Highest AQI recorded in
January143AQI
Lowest AQI recorded in
March103AQI
2020108AQI
Highest AQI recorded in
December152AQI
Lowest AQI recorded in
August71AQI
Most & Least Polluted Years Over the Last 5 Years
Automatic Station Of Yongcheng Archives 's annual 2025 AQI (102) shows an average percentage change of -10.3% (improved AQI) compared to previous years: 2020 (108), 2021 (127), 2023 (140), 2024 (92).