South Lake Scenic Area, Rongjiawan, Hunan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
South Lake Scenic Area, Rongjiawan, Hunan, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 61 of Moderate air quality, showing improvement over 2024 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
South Lake Scenic Area, Rongjiawan, Hunan, China
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
72AQI
55AQI
72AQI
57AQI
In the last 24 hours,
South Lake Scenic Area's AQI reached its highest point of 72 at 6 PM during the Day, while the lowest point, 55, was recorded at 7 AM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
South Lake Scenic Area, Rongjiawan, Hunan, China
30°C25/36°C
32°C25/38°C
32°C27/38°C
31°C26/38°C
31°C26/38°C
32°C26/38°C
31°C27/36°C
29°C23/36°C
28°C24/33°C
28°C24/33°C
29°C25/35°C
31°C27/36°C
31°C26/36°C
32°C28/37°C
27°C24/30°C
28°C23/34°C
28°C24/34°C
25°C22/28°C
26°C24/30°C
28°C24/33°C
27°C24/32°C
25°C22/28°C
25°C23/27°C
28°C24/34°C
30°C26/35°C
28°C21/35°C
21°C20/22°C
19°C18/19°C
20°C17/24°C
21°C19/23°C
--°C/°C
60AQI
54AQI
64AQI
59AQI
2025 Days Vs Air Quality
South Lake Scenic Area, Rongjiawan, Hunan, China
9%
24
64%
168
18%
48
8%
22
0.7%
2
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2025, 9% of 265 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
South Lake Scenic Area, Rongjiawan, Hunan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
163AQI
180AQI
193AQI
221AQI
159AQI
166AQI
144AQI
153AQI
128AQI
123AQI
136AQI
129AQI
145AQI
160AQI
119AQI
134AQI
129AQI
156AQI
152AQI
166AQI
158AQI
170AQI
224AQI
165AQI
108AQI
108AQI
106AQI
141AQI
185AQI
140AQI
177AQI
138AQI
139AQI
154AQI
138AQI
140AQI
116AQI
119AQI
83AQI
101AQI
125AQI
127AQI
151AQI
155AQI
162AQI
158AQI
140AQI
114AQI
102AQI
116AQI
138AQI
150AQI
94AQI
160AQI
143AQI
155AQI
145AQI
115AQI
131AQI
108AQI
89AQI
60AQI
99AQI
93AQI
127AQI
132AQI
119AQI
132AQI
121AQI
104AQI
137AQI
114AQI
98AQI
86AQI
98AQI
83AQI
89AQI
90AQI
92AQI
90AQI
98AQI
125AQI
104AQI
108AQI
97AQI
100AQI
82AQI
86AQI
81AQI
88AQI
86AQI
86AQI
89AQI
93AQI
97AQI
91AQI
95AQI
95AQI
90AQI
87AQI
84AQI
114AQI
110AQI
113AQI
90AQI
98AQI
94AQI
91AQI
90AQI
92AQI
81AQI
84AQI
83AQI
79AQI
84AQI
77AQI
80AQI
87AQI
85AQI
79AQI
82AQI
79AQI
85AQI
83AQI
78AQI
91AQI
95AQI
77AQI
82AQI
80AQI
78AQI
80AQI
79AQI
89AQI
83AQI
75AQI
79AQI
94AQI
83AQI
75AQI
72AQI
69AQI
78AQI
86AQI
87AQI
83AQI
90AQI
76AQI
75AQI
67AQI
67AQI
63AQI
68AQI
75AQI
86AQI
77AQI
81AQI
75AQI
72AQI
75AQI
78AQI
71AQI
72AQI
73AQI
70AQI
68AQI
66AQI
63AQI
50AQI
49AQI
49AQI
45AQI
34AQI
40AQI
48AQI
53AQI
51AQI
58AQI
47AQI
46AQI
48AQI
44AQI
42AQI
49AQI
53AQI
59AQI
66AQI
69AQI
67AQI
58AQI
58AQI
68AQI
62AQI
61AQI
62AQI
63AQI
61AQI
64AQI
62AQI
69AQI
64AQI
54AQI
45AQI
46AQI
52AQI
57AQI
57AQI
52AQI
58AQI
56AQI
58AQI
58AQI
63AQI
67AQI
66AQI
63AQI
60AQI
51AQI
52AQI
49AQI
59AQI
63AQI
55AQI
56AQI
56AQI
56AQI
45AQI
48AQI
52AQI
53AQI
47AQI
45AQI
47AQI
48AQI
50AQI
52AQI
52AQI
54AQI
56AQI
57AQI
59AQI
60AQI
57AQI
56AQI
57AQI
60AQI
76AQI
72AQI
67AQI
71AQI
67AQI
59AQI
59AQI
57AQI
52AQI
58AQI
58AQI
62AQI
62AQI
62AQI
63AQI
49AQI
52AQI
61AQI
153AQI
132AQI
101AQI
90AQI
81AQI
62AQI
58AQI
55AQI
61AQI
No. of days
202589AQI
Highest AQI recorded in
January153AQI
Lowest AQI recorded in
August55AQI
202494AQI
Highest AQI recorded in
December140AQI
Lowest AQI recorded in
July51AQI
202395AQI
Highest AQI recorded in
January151AQI
Lowest AQI recorded in
July58AQI
2022100AQI
Highest AQI recorded in
January145AQI
Lowest AQI recorded in
July59AQI
2021100AQI
Highest AQI recorded in
January139AQI
Lowest AQI recorded in
July70AQI
202099AQI
Highest AQI recorded in
December152AQI
Lowest AQI recorded in
August71AQI
Most & Least Polluted Years Over the Last 6 Years
South Lake Scenic Area's annual 2025 AQI (89) shows an average percentage change of -8.9% (improved AQI) compared to previous years: 2020 (99), 2021 (100), 2022 (100), 2023 (95), 2024 (94).