Kuancheng No. 2 Middle School, Pingquan, Hebei, 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
Kuancheng No. 2 Middle School, Pingquan, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 58 of Moderate air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Kuancheng No. 2 Middle School, Pingquan, Hebei, China
5 AM21st Sep 2025
6 PM
4 AM22nd Sep 2025
65AQI
50AQI
64AQI
57AQI
In the last 24 hours,
Kuancheng No. 2 Middle School's AQI reached its highest point of 65 at 9 AM during the Day, while the lowest point, 50, was recorded at 2 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Kuancheng No. 2 Middle School, Pingquan, Hebei, China
20°C16/24°C
20°C15/26°C
22°C16/30°C
22°C15/29°C
18°C15/20°C
20°C15/25°C
21°C18/26°C
21°C17/28°C
21°C16/28°C
22°C16/30°C
22°C15/30°C
23°C18/30°C
22°C17/30°C
19°C15/25°C
19°C13/27°C
18°C12/25°C
18°C11/27°C
19°C12/29°C
20°C13/28°C
22°C17/28°C
20°C15/26°C
20°C14/27°C
18°C12/25°C
15°C10/21°C
16°C10/21°C
13°C6/20°C
14°C6/23°C
15°C11/22°C
16°C9/24°C
17°C9/25°C
--°C/°C
71AQI
55AQI
65AQI
61AQI
2025 Days Vs Air Quality
Kuancheng No. 2 Middle School, Pingquan, Hebei, China
2%
6
88%
233
9%
23
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: 2%
Health Risk Level:
Extreme
In 2025, 2% 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
Kuancheng No. 2 Middle School, Pingquan, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
87AQI
69AQI
77AQI
95AQI
98AQI
81AQI
67AQI
56AQI
59AQI
65AQI
83AQI
90AQI
81AQI
68AQI
62AQI
76AQI
90AQI
118AQI
89AQI
123AQI
88AQI
101AQI
128AQI
139AQI
150AQI
114AQI
79AQI
90AQI
122AQI
95AQI
135AQI
126AQI
112AQI
74AQI
69AQI
57AQI
67AQI
44AQI
48AQI
59AQI
88AQI
113AQI
79AQI
96AQI
93AQI
98AQI
65AQI
65AQI
62AQI
59AQI
58AQI
52AQI
56AQI
52AQI
67AQI
63AQI
78AQI
121AQI
130AQI
138AQI
90AQI
97AQI
96AQI
99AQI
70AQI
92AQI
126AQI
148AQI
154AQI
161AQI
90AQI
105AQI
92AQI
83AQI
73AQI
67AQI
55AQI
64AQI
57AQI
57AQI
62AQI
113AQI
58AQI
76AQI
94AQI
69AQI
70AQI
58AQI
65AQI
71AQI
82AQI
59AQI
74AQI
80AQI
61AQI
72AQI
81AQI
69AQI
75AQI
83AQI
103AQI
79AQI
74AQI
70AQI
75AQI
96AQI
94AQI
70AQI
73AQI
82AQI
90AQI
68AQI
77AQI
60AQI
68AQI
94AQI
59AQI
73AQI
75AQI
71AQI
66AQI
66AQI
58AQI
67AQI
76AQI
69AQI
89AQI
91AQI
68AQI
73AQI
84AQI
87AQI
97AQI
79AQI
77AQI
102AQI
71AQI
79AQI
76AQI
105AQI
88AQI
109AQI
80AQI
81AQI
82AQI
82AQI
76AQI
83AQI
88AQI
99AQI
97AQI
93AQI
79AQI
60AQI
56AQI
62AQI
61AQI
53AQI
63AQI
69AQI
56AQI
68AQI
76AQI
73AQI
78AQI
63AQI
51AQI
61AQI
67AQI
66AQI
59AQI
52AQI
46AQI
56AQI
66AQI
70AQI
69AQI
74AQI
68AQI
73AQI
68AQI
68AQI
66AQI
63AQI
67AQI
64AQI
55AQI
60AQI
62AQI
66AQI
71AQI
71AQI
71AQI
60AQI
57AQI
60AQI
57AQI
54AQI
57AQI
63AQI
55AQI
54AQI
62AQI
61AQI
55AQI
60AQI
62AQI
57AQI
55AQI
51AQI
50AQI
55AQI
62AQI
63AQI
60AQI
59AQI
58AQI
61AQI
57AQI
58AQI
51AQI
54AQI
59AQI
61AQI
59AQI
63AQI
63AQI
56AQI
59AQI
64AQI
62AQI
60AQI
60AQI
58AQI
57AQI
57AQI
56AQI
57AQI
58AQI
54AQI
61AQI
65AQI
61AQI
59AQI
67AQI
72AQI
79AQI
79AQI
70AQI
66AQI
66AQI
72AQI
68AQI
73AQI
74AQI
75AQI
67AQI
58AQI
55AQI
48AQI
50AQI
54AQI
57AQI
58AQI
93AQI
77AQI
89AQI
76AQI
82AQI
65AQI
60AQI
59AQI
65AQI
No. of days
202574AQI
Highest AQI recorded in
January93AQI
Lowest AQI recorded in
August59AQI
202459AQI
Highest AQI recorded in
November89AQI
Lowest AQI recorded in
February25AQI
202386AQI
Highest AQI recorded in
January108AQI
Lowest AQI recorded in
November37AQI
202285AQI
Highest AQI recorded in
November100AQI
Lowest AQI recorded in
August68AQI
2021118AQI
Highest AQI recorded in
March143AQI
Lowest AQI recorded in
April81AQI
202097AQI
Highest AQI recorded in
July113AQI
Lowest AQI recorded in
September74AQI
Most & Least Polluted Years Over the Last 6 Years
Kuancheng No. 2 Middle School's annual 2025 AQI (74) shows an average percentage change of -11.9% (improved AQI) compared to previous years: 2020 (97), 2021 (118), 2022 (85), 2023 (86), 2024 (59).