Vocational And Technical College, Huaibei, Anhui, 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
Vocational And Technical College, Huaibei, Anhui, China
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Vocational And Technical College, Huaibei, Anhui, China
5 AM21st Sep 2025
6 PM
4 AM22nd Sep 2025
AQI
AQI
96AQI
56AQI
In the last 24 hours,
Vocational And Technical College's AQI reached its highest point of 96 at 9 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Vocational And Technical College, Huaibei, Anhui, China
29°C25/34°C
28°C25/35°C
26°C23/31°C
27°C24/31°C
28°C23/34°C
30°C26/36°C
29°C25/36°C
27°C24/32°C
24°C22/27°C
26°C21/31°C
25°C21/30°C
25°C23/30°C
26°C22/30°C
27°C23/32°C
25°C22/28°C
26°C22/30°C
21°C18/23°C
21°C18/25°C
23°C18/29°C
20°C18/22°C
20°C19/21°C
23°C19/27°C
24°C20/29°C
26°C23/31°C
25°C22/31°C
21°C18/23°C
19°C17/20°C
16°C15/17°C
18°C12/24°C
--°C/°C
--°C/°C
66AQI
56AQI
62AQI
59AQI
2025 Days Vs Air Quality
Vocational And Technical College, Huaibei, Anhui, China
0.7%
2
58%
152
31%
81
10%
27
0.3%
1
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 0.76%
Health Risk Level:
Extreme
In 2025, 0.76% of 264 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
Vocational And Technical College, Huaibei, Anhui, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
154AQI
155AQI
144AQI
181AQI
169AQI
116AQI
125AQI
117AQI
98AQI
108AQI
135AQI
143AQI
155AQI
146AQI
104AQI
143AQI
144AQI
160AQI
169AQI
171AQI
177AQI
180AQI
159AQI
135AQI
137AQI
140AQI
86AQI
120AQI
152AQI
152AQI
179AQI
169AQI
178AQI
171AQI
141AQI
107AQI
108AQI
74AQI
79AQI
87AQI
110AQI
141AQI
139AQI
150AQI
153AQI
153AQI
124AQI
103AQI
133AQI
128AQI
106AQI
106AQI
141AQI
122AQI
100AQI
141AQI
146AQI
157AQI
160AQI
162AQI
91AQI
106AQI
125AQI
137AQI
139AQI
145AQI
153AQI
153AQI
157AQI
163AQI
173AQI
138AQI
99AQI
133AQI
82AQI
96AQI
76AQI
101AQI
98AQI
88AQI
98AQI
123AQI
235AQI
128AQI
125AQI
107AQI
119AQI
96AQI
106AQI
110AQI
109AQI
99AQI
102AQI
115AQI
107AQI
105AQI
106AQI
118AQI
117AQI
117AQI
112AQI
121AQI
104AQI
94AQI
94AQI
97AQI
108AQI
111AQI
106AQI
100AQI
98AQI
98AQI
107AQI
98AQI
97AQI
98AQI
94AQI
94AQI
93AQI
96AQI
95AQI
101AQI
87AQI
91AQI
95AQI
106AQI
105AQI
101AQI
88AQI
86AQI
91AQI
89AQI
94AQI
98AQI
114AQI
104AQI
104AQI
96AQI
110AQI
106AQI
103AQI
101AQI
113AQI
102AQI
101AQI
101AQI
104AQI
99AQI
103AQI
98AQI
109AQI
93AQI
95AQI
94AQI
92AQI
89AQI
93AQI
90AQI
92AQI
90AQI
89AQI
89AQI
87AQI
91AQI
90AQI
80AQI
81AQI
83AQI
68AQI
60AQI
65AQI
74AQI
79AQI
75AQI
71AQI
72AQI
72AQI
69AQI
62AQI
53AQI
58AQI
60AQI
54AQI
60AQI
59AQI
60AQI
63AQI
68AQI
62AQI
57AQI
76AQI
85AQI
73AQI
74AQI
69AQI
73AQI
83AQI
71AQI
69AQI
68AQI
58AQI
61AQI
58AQI
59AQI
59AQI
61AQI
58AQI
58AQI
56AQI
56AQI
59AQI
56AQI
56AQI
52AQI
57AQI
65AQI
66AQI
66AQI
65AQI
61AQI
59AQI
60AQI
49AQI
55AQI
60AQI
58AQI
59AQI
55AQI
59AQI
62AQI
61AQI
56AQI
58AQI
58AQI
57AQI
59AQI
62AQI
63AQI
63AQI
64AQI
64AQI
63AQI
56AQI
57AQI
58AQI
63AQI
69AQI
68AQI
68AQI
72AQI
62AQI
63AQI
60AQI
59AQI
58AQI
64AQI
63AQI
58AQI
60AQI
52AQI
54AQI
49AQI
57AQI
144AQI
130AQI
125AQI
104AQI
100AQI
80AQI
64AQI
60AQI
61AQI
No. of days
202597AQI
Highest AQI recorded in
January144AQI
Lowest AQI recorded in
August60AQI
202494AQI
Highest AQI recorded in
February189AQI
Lowest AQI recorded in
July57AQI
2023126AQI
Highest AQI recorded in
January155AQI
Lowest AQI recorded in
May87AQI
2022108AQI
Highest AQI recorded in
January170AQI
Lowest AQI recorded in
July67AQI
2021107AQI
Highest AQI recorded in
January150AQI
Lowest AQI recorded in
July55AQI
2020107AQI
Highest AQI recorded in
December147AQI
Lowest AQI recorded in
July79AQI
Most & Least Polluted Years Over the Last 6 Years
Vocational And Technical College's annual 2025 AQI (97) shows an average percentage change of -9.5% (improved AQI) compared to previous years: 2020 (107), 2021 (107), 2022 (108), 2023 (126), 2024 (94).