Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, 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
Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, China
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 37 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, China
6 AM19th Sep 2025
6 PM
5 AM20th Sep 2025
50AQI
16AQI
52AQI
36AQI
In the last 24 hours,
Shangnan County Environmental Protection Bureau's AQI reached its highest point of 52 at 2 AM during the Night, while the lowest point, 16, was recorded at 11 AM during the Day between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, China
26°C23/29°C
24°C20/29°C
24°C20/30°C
22°C17/24°C
25°C20/30°C
23°C19/28°C
26°C22/31°C
23°C18/29°C
20°C17/26°C
20°C16/23°C
21°C15/29°C
21°C15/30°C
21°C16/28°C
20°C19/23°C
20°C18/23°C
18°C14/19°C
15°C14/18°C
18°C14/25°C
20°C16/26°C
21°C16/26°C
18°C15/21°C
19°C17/22°C
19°C16/26°C
20°C16/25°C
22°C15/30°C
22°C17/29°C
23°C19/30°C
18°C15/19°C
14°C12/15°C
14°C10/19°C
--°C/°C
55AQI
44AQI
55AQI
51AQI
2025 Days Vs Air Quality
Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, China
8%
21
60%
158
25%
65
6%
15
0.7%
2
0.3%
1
Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)
Under WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2025, 8% of 263 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
Shangnan County Environmental Protection Bureau, Yunxian Chengguanzhen, Hubei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
140AQI
148AQI
178AQI
171AQI
130AQI
128AQI
111AQI
100AQI
108AQI
118AQI
92AQI
106AQI
123AQI
89AQI
97AQI
95AQI
116AQI
127AQI
130AQI
136AQI
162AQI
184AQI
217AQI
162AQI
116AQI
93AQI
88AQI
100AQI
158AQI
153AQI
169AQI
139AQI
127AQI
98AQI
100AQI
72AQI
78AQI
77AQI
66AQI
82AQI
104AQI
140AQI
91AQI
108AQI
90AQI
105AQI
90AQI
107AQI
115AQI
144AQI
156AQI
165AQI
169AQI
156AQI
168AQI
137AQI
132AQI
140AQI
143AQI
131AQI
93AQI
76AQI
78AQI
99AQI
103AQI
123AQI
118AQI
127AQI
111AQI
126AQI
107AQI
105AQI
100AQI
75AQI
61AQI
62AQI
59AQI
61AQI
61AQI
68AQI
76AQI
88AQI
96AQI
82AQI
110AQI
130AQI
136AQI
117AQI
105AQI
100AQI
99AQI
87AQI
88AQI
109AQI
96AQI
106AQI
96AQI
97AQI
95AQI
102AQI
97AQI
206AQI
108AQI
99AQI
82AQI
107AQI
129AQI
124AQI
129AQI
104AQI
101AQI
169AQI
131AQI
112AQI
103AQI
103AQI
83AQI
69AQI
65AQI
100AQI
106AQI
103AQI
88AQI
86AQI
108AQI
398AQI
159AQI
149AQI
124AQI
99AQI
90AQI
87AQI
79AQI
90AQI
92AQI
92AQI
129AQI
126AQI
114AQI
114AQI
113AQI
99AQI
87AQI
89AQI
94AQI
84AQI
89AQI
92AQI
93AQI
84AQI
73AQI
72AQI
66AQI
62AQI
57AQI
59AQI
64AQI
61AQI
64AQI
66AQI
68AQI
74AQI
76AQI
76AQI
63AQI
59AQI
63AQI
67AQI
66AQI
51AQI
60AQI
63AQI
61AQI
62AQI
65AQI
64AQI
53AQI
56AQI
59AQI
56AQI
55AQI
46AQI
51AQI
56AQI
52AQI
42AQI
46AQI
49AQI
60AQI
58AQI
56AQI
66AQI
71AQI
68AQI
62AQI
63AQI
65AQI
63AQI
67AQI
68AQI
59AQI
60AQI
61AQI
46AQI
43AQI
53AQI
55AQI
56AQI
55AQI
54AQI
57AQI
57AQI
61AQI
61AQI
64AQI
70AQI
68AQI
61AQI
55AQI
56AQI
51AQI
46AQI
46AQI
53AQI
57AQI
58AQI
58AQI
49AQI
53AQI
56AQI
59AQI
56AQI
56AQI
55AQI
54AQI
49AQI
53AQI
61AQI
63AQI
51AQI
47AQI
54AQI
48AQI
51AQI
57AQI
58AQI
54AQI
46AQI
58AQI
58AQI
52AQI
49AQI
57AQI
44AQI
44AQI
46AQI
47AQI
56AQI
52AQI
47AQI
38AQI
37AQI
130AQI
118AQI
96AQI
107AQI
111AQI
63AQI
57AQI
56AQI
50AQI
No. of days
202589AQI
Highest AQI recorded in
January130AQI
Lowest AQI recorded in
September50AQI
202486AQI
Highest AQI recorded in
February136AQI
Lowest AQI recorded in
July48AQI
202395AQI
Highest AQI recorded in
January142AQI
Lowest AQI recorded in
September59AQI
2022102AQI
Highest AQI recorded in
January154AQI
Lowest AQI recorded in
July63AQI
202190AQI
Highest AQI recorded in
January133AQI
Lowest AQI recorded in
July52AQI
202078AQI
Highest AQI recorded in
December127AQI
Lowest AQI recorded in
August55AQI
Most & Least Polluted Years Over the Last 6 Years
Shangnan County Environmental Protection Bureau's annual 2025 AQI (89) shows an average percentage change of -0.6% (improved AQI) compared to previous years: 2020 (78), 2021 (90), 2022 (102), 2023 (95), 2024 (86).