Yongzhou, Hunan, 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
Yongzhou, Hunan, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 51 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Aug - 20th Aug 2025
Yongzhou, Hunan, China
6 AM19th Aug 2025
7 PM
5 AM20th Aug 2025
AQI
AQI
54AQI
23AQI
In the last 24 hours,
Yongzhou's AQI reached its highest point of 54 at 7 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 19th Aug and 20th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yongzhou, Hunan, China
26°C24/30°C
25°C23/28°C
24°C23/26°C
28°C24/33°C
28°C24/34°C
29°C24/35°C
28°C23/33°C
27°C24/29°C
28°C24/33°C
28°C24/34°C
28°C24/32°C
28°C22/33°C
29°C23/34°C
29°C24/34°C
29°C24/35°C
30°C26/37°C
28°C25/33°C
27°C24/30°C
28°C23/34°C
29°C25/33°C
29°C24/35°C
30°C25/35°C
29°C23/35°C
28°C25/33°C
25°C23/28°C
27°C24/32°C
28°C23/33°C
28°C23/34°C
28°C24/33°C
--°C/°C
--°C/°C
58AQI
52AQI
58AQI
58AQI
2025 Days Vs Air Quality
Yongzhou, Hunan, China
9%
20
58%
134
25%
57
7%
16
0.8%
2
0.4%
1
Total number of days with different AQI categories in last 231 days in 2025 (134 days remaining)
Under WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2025, 9% of 231 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
Yongzhou, Hunan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
165AQI
159AQI
167AQI
177AQI
184AQI
160AQI
166AQI
157AQI
126AQI
116AQI
122AQI
122AQI
119AQI
130AQI
128AQI
122AQI
131AQI
142AQI
141AQI
157AQI
155AQI
167AQI
172AQI
234AQI
93AQI
104AQI
90AQI
127AQI
212AQI
153AQI
150AQI
97AQI
90AQI
115AQI
107AQI
124AQI
118AQI
105AQI
75AQI
87AQI
101AQI
120AQI
123AQI
147AQI
155AQI
154AQI
107AQI
113AQI
100AQI
80AQI
64AQI
132AQI
58AQI
116AQI
129AQI
147AQI
141AQI
101AQI
105AQI
80AQI
83AQI
59AQI
63AQI
57AQI
86AQI
97AQI
103AQI
116AQI
91AQI
93AQI
97AQI
110AQI
76AQI
69AQI
77AQI
73AQI
79AQI
83AQI
89AQI
95AQI
110AQI
133AQI
133AQI
143AQI
133AQI
132AQI
97AQI
93AQI
69AQI
89AQI
87AQI
93AQI
104AQI
131AQI
132AQI
138AQI
137AQI
135AQI
134AQI
104AQI
114AQI
323AQI
187AQI
149AQI
134AQI
132AQI
121AQI
121AQI
87AQI
90AQI
82AQI
81AQI
87AQI
79AQI
80AQI
83AQI
67AQI
85AQI
89AQI
101AQI
88AQI
90AQI
90AQI
97AQI
79AQI
94AQI
100AQI
82AQI
76AQI
85AQI
81AQI
80AQI
84AQI
86AQI
111AQI
74AQI
84AQI
73AQI
70AQI
63AQI
66AQI
66AQI
75AQI
96AQI
97AQI
87AQI
86AQI
65AQI
67AQI
68AQI
61AQI
65AQI
62AQI
76AQI
84AQI
83AQI
83AQI
72AQI
65AQI
77AQI
84AQI
80AQI
75AQI
75AQI
62AQI
61AQI
61AQI
52AQI
40AQI
42AQI
46AQI
48AQI
47AQI
52AQI
45AQI
53AQI
54AQI
47AQI
45AQI
47AQI
45AQI
39AQI
33AQI
40AQI
48AQI
56AQI
66AQI
67AQI
64AQI
70AQI
57AQI
62AQI
63AQI
63AQI
61AQI
58AQI
57AQI
58AQI
66AQI
66AQI
58AQI
49AQI
47AQI
52AQI
54AQI
59AQI
60AQI
62AQI
59AQI
61AQI
62AQI
60AQI
63AQI
62AQI
58AQI
61AQI
60AQI
47AQI
48AQI
52AQI
57AQI
60AQI
61AQI
63AQI
63AQI
60AQI
44AQI
49AQI
54AQI
51AQI
147AQI
111AQI
94AQI
116AQI
81AQI
61AQI
57AQI
56AQI
No. of days
202592AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
August56AQI
202491AQI
Highest AQI recorded in
December138AQI
Lowest AQI recorded in
July46AQI
202397AQI
Highest AQI recorded in
January140AQI
Lowest AQI recorded in
July60AQI
202296AQI
Highest AQI recorded in
December137AQI
Lowest AQI recorded in
July49AQI
202191AQI
Highest AQI recorded in
January146AQI
Lowest AQI recorded in
July58AQI
202084AQI
Highest AQI recorded in
December149AQI
Lowest AQI recorded in
June42AQI
Most & Least Polluted Years Over the Last 6 Years
Yongzhou's annual 2025 AQI (92) shows an average percentage change of 0.7% (worsened AQI) compared to previous years: 2020 (84), 2021 (91), 2022 (96), 2023 (97), 2024 (91).