Tianxin District Epb, Changsha, 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
Tianxin District Epb, Changsha, Hunan, China
AQI Trends: Highest and Lowest
Same Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 112 of Poor air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Tianxin District Epb, Changsha, Hunan, China
6 AM29th Sep 2025
6 PM
5 AM30th Sep 2025
AQI
AQI
156AQI
64AQI
In the last 24 hours,
Tianxin District Epb's AQI reached its highest point of 156 at 7 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Tianxin District Epb, Changsha, Hunan, China
29°C24/35°C
28°C25/34°C
29°C25/35°C
31°C26/37°C
31°C27/37°C
31°C27/37°C
29°C25/33°C
28°C23/35°C
29°C25/35°C
26°C24/30°C
26°C24/32°C
28°C23/34°C
29°C25/35°C
27°C23/32°C
27°C24/33°C
29°C24/35°C
30°C26/36°C
31°C24/38°C
22°C20/24°C
20°C18/22°C
19°C17/20°C
20°C19/20°C
21°C19/25°C
21°C18/25°C
20°C19/21°C
21°C20/24°C
21°C19/24°C
24°C21/29°C
27°C22/33°C
--°C/°C
--°C/°C
63AQI
60AQI
65AQI
61AQI
2025 Days Vs Air Quality
Tianxin District Epb, Changsha, Hunan, China
11%
30
57%
155
25%
67
6%
17
0.7%
2
0.3%
1
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 11%
Health Risk Level:
Extreme
In 2025, 11% of 272 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
Tianxin District Epb, Changsha, Hunan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
172AQI
178AQI
191AQI
212AQI
146AQI
161AQI
159AQI
143AQI
139AQI
117AQI
133AQI
136AQI
137AQI
140AQI
126AQI
124AQI
122AQI
139AQI
155AQI
164AQI
159AQI
160AQI
242AQI
183AQI
101AQI
100AQI
113AQI
121AQI
181AQI
138AQI
128AQI
117AQI
115AQI
130AQI
109AQI
140AQI
116AQI
122AQI
75AQI
90AQI
98AQI
132AQI
139AQI
158AQI
158AQI
159AQI
149AQI
123AQI
112AQI
107AQI
104AQI
151AQI
77AQI
146AQI
132AQI
157AQI
147AQI
132AQI
118AQI
90AQI
84AQI
49AQI
86AQI
82AQI
118AQI
91AQI
97AQI
118AQI
99AQI
100AQI
123AQI
115AQI
71AQI
86AQI
78AQI
80AQI
82AQI
80AQI
82AQI
103AQI
95AQI
135AQI
107AQI
136AQI
137AQI
142AQI
90AQI
106AQI
74AQI
100AQI
96AQI
105AQI
102AQI
121AQI
125AQI
129AQI
136AQI
137AQI
134AQI
119AQI
116AQI
415AQI
144AQI
160AQI
113AQI
125AQI
120AQI
121AQI
81AQI
105AQI
68AQI
90AQI
86AQI
71AQI
73AQI
73AQI
78AQI
88AQI
101AQI
88AQI
93AQI
86AQI
100AQI
102AQI
84AQI
98AQI
98AQI
80AQI
79AQI
83AQI
81AQI
87AQI
85AQI
96AQI
99AQI
76AQI
79AQI
87AQI
77AQI
59AQI
61AQI
58AQI
71AQI
95AQI
100AQI
94AQI
114AQI
71AQI
70AQI
60AQI
56AQI
45AQI
61AQI
71AQI
82AQI
78AQI
80AQI
65AQI
74AQI
67AQI
73AQI
61AQI
56AQI
63AQI
55AQI
53AQI
55AQI
47AQI
50AQI
50AQI
51AQI
51AQI
40AQI
39AQI
44AQI
49AQI
55AQI
50AQI
47AQI
49AQI
50AQI
45AQI
42AQI
46AQI
52AQI
57AQI
60AQI
65AQI
68AQI
63AQI
59AQI
62AQI
61AQI
61AQI
60AQI
61AQI
60AQI
60AQI
64AQI
65AQI
53AQI
43AQI
41AQI
41AQI
51AQI
51AQI
57AQI
52AQI
56AQI
58AQI
53AQI
60AQI
63AQI
69AQI
63AQI
61AQI
60AQI
50AQI
48AQI
48AQI
55AQI
56AQI
61AQI
64AQI
63AQI
57AQI
45AQI
53AQI
56AQI
53AQI
46AQI
47AQI
49AQI
50AQI
55AQI
54AQI
54AQI
58AQI
60AQI
60AQI
61AQI
61AQI
60AQI
60AQI
61AQI
62AQI
64AQI
68AQI
70AQI
71AQI
64AQI
58AQI
58AQI
56AQI
54AQI
59AQI
60AQI
61AQI
62AQI
61AQI
59AQI
55AQI
58AQI
61AQI
62AQI
63AQI
50AQI
48AQI
49AQI
64AQI
76AQI
112AQI
149AQI
125AQI
98AQI
117AQI
83AQI
57AQI
56AQI
56AQI
62AQI
No. of days
202589AQI
Highest AQI recorded in
January149AQI
Lowest AQI recorded in
July56AQI
202497AQI
Highest AQI recorded in
December142AQI
Lowest AQI recorded in
July48AQI
202392AQI
Highest AQI recorded in
January149AQI
Lowest AQI recorded in
July55AQI
202299AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
August43AQI
2021103AQI
Highest AQI recorded in
December151AQI
Lowest AQI recorded in
July62AQI
202095AQI
Highest AQI recorded in
December161AQI
Lowest AQI recorded in
August60AQI
Most & Least Polluted Years Over the Last 6 Years
Tianxin District Epb's annual 2025 AQI (89) shows an average percentage change of -8.1% (improved AQI) compared to previous years: 2020 (95), 2021 (103), 2022 (99), 2023 (92), 2024 (97).