City Environmental Monitoring Station, 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
City Environmental Monitoring Station, Yongzhou, Hunan, China
AQI Trends: Highest and Lowest
Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 61 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
City Environmental Monitoring Station, Yongzhou, Hunan, China
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
AQI
AQI
62AQI
46AQI
In the last 24 hours,
City Environmental Monitoring Station's AQI reached its highest point of 62 at 11 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
City Environmental Monitoring Station, Yongzhou, Hunan, China
31°C26/38°C
30°C25/38°C
30°C24/37°C
31°C26/37°C
30°C26/37°C
27°C25/31°C
27°C24/32°C
27°C24/31°C
28°C24/33°C
29°C24/35°C
30°C24/36°C
30°C26/36°C
31°C27/37°C
30°C26/36°C
30°C26/36°C
28°C25/31°C
27°C24/31°C
26°C24/28°C
25°C24/27°C
28°C24/33°C
29°C24/34°C
30°C25/36°C
28°C25/34°C
28°C25/31°C
29°C25/34°C
29°C25/35°C
29°C25/34°C
28°C24/34°C
29°C25/35°C
--°C/°C
--°C/°C
61AQI
61AQI
59AQI
59AQI
2025 Days Vs Air Quality
City Environmental Monitoring Station, Yongzhou, Hunan, China
8%
17
57%
122
24%
52
9%
19
1%
3
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Under WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2025, 8% of 215 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
City Environmental Monitoring Station, Yongzhou, Hunan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
167AQI
164AQI
170AQI
178AQI
186AQI
159AQI
166AQI
156AQI
123AQI
113AQI
119AQI
124AQI
118AQI
131AQI
125AQI
121AQI
131AQI
144AQI
142AQI
158AQI
155AQI
169AQI
171AQI
233AQI
88AQI
100AQI
87AQI
123AQI
225AQI
154AQI
153AQI
99AQI
91AQI
116AQI
104AQI
125AQI
116AQI
105AQI
73AQI
86AQI
99AQI
118AQI
122AQI
147AQI
155AQI
154AQI
104AQI
111AQI
97AQI
77AQI
63AQI
132AQI
57AQI
117AQI
129AQI
148AQI
142AQI
97AQI
104AQI
79AQI
81AQI
57AQI
63AQI
58AQI
85AQI
94AQI
101AQI
115AQI
88AQI
90AQI
94AQI
108AQI
72AQI
68AQI
76AQI
71AQI
77AQI
84AQI
90AQI
94AQI
110AQI
133AQI
132AQI
148AQI
145AQI
143AQI
101AQI
95AQI
62AQI
88AQI
86AQI
92AQI
106AQI
143AQI
143AQI
153AQI
152AQI
148AQI
148AQI
106AQI
123AQI
429AQI
216AQI
164AQI
143AQI
141AQI
128AQI
128AQI
83AQI
87AQI
77AQI
77AQI
85AQI
75AQI
75AQI
82AQI
60AQI
83AQI
89AQI
105AQI
86AQI
88AQI
89AQI
98AQI
75AQI
96AQI
103AQI
78AQI
71AQI
84AQI
77AQI
76AQI
79AQI
83AQI
116AQI
68AQI
81AQI
65AQI
60AQI
54AQI
59AQI
57AQI
69AQI
97AQI
98AQI
83AQI
82AQI
54AQI
61AQI
60AQI
51AQI
58AQI
55AQI
73AQI
82AQI
81AQI
78AQI
67AQI
57AQI
74AQI
85AQI
80AQI
71AQI
71AQI
56AQI
56AQI
56AQI
46AQI
41AQI
40AQI
46AQI
48AQI
47AQI
51AQI
46AQI
52AQI
54AQI
47AQI
45AQI
48AQI
46AQI
37AQI
31AQI
36AQI
46AQI
53AQI
65AQI
67AQI
64AQI
72AQI
56AQI
62AQI
63AQI
63AQI
60AQI
57AQI
56AQI
57AQI
66AQI
66AQI
58AQI
49AQI
48AQI
53AQI
54AQI
59AQI
59AQI
62AQI
59AQI
60AQI
62AQI
60AQI
62AQI
61AQI
147AQI
110AQI
94AQI
124AQI
77AQI
59AQI
57AQI
62AQI
No. of days
202595AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
July57AQI
202492AQI
Highest AQI recorded in
December139AQI
Lowest AQI recorded in
July45AQI
202398AQI
Highest AQI recorded in
January138AQI
Lowest AQI recorded in
July61AQI
202294AQI
Highest AQI recorded in
December137AQI
Lowest AQI recorded in
July48AQI
202190AQI
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
July54AQI
202082AQI
Highest AQI recorded in
December151AQI
Lowest AQI recorded in
June39AQI
Most & Least Polluted Years Over the Last 6 Years
City Environmental Monitoring Station's annual 2025 AQI (95) shows an average percentage change of 4.5% (worsened AQI) compared to previous years: 2020 (82), 2021 (90), 2022 (94), 2023 (98), 2024 (92).