Jinyun Middle School, Guli, Zhejiang, 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
Jinyun Middle School, Guli, Zhejiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 46 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Jinyun Middle School, Guli, Zhejiang, China
5 AM19th Sep 2025
6 PM
4 AM20th Sep 2025
53AQI
22AQI
54AQI
31AQI
In the last 24 hours,
Jinyun Middle School's AQI reached its highest point of 54 at 2 AM during the Night, while the lowest point, 22, was recorded at 3 PM during the Day between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Jinyun Middle School, Guli, Zhejiang, China
26°C20/37°C
27°C20/35°C
28°C21/36°C
28°C22/38°C
29°C22/38°C
28°C22/36°C
28°C22/36°C
28°C22/36°C
28°C22/35°C
29°C24/37°C
27°C22/37°C
26°C21/35°C
27°C22/34°C
28°C22/36°C
28°C22/37°C
28°C23/37°C
28°C22/37°C
29°C22/38°C
29°C23/38°C
28°C24/34°C
26°C24/31°C
27°C23/33°C
27°C22/35°C
27°C20/36°C
27°C22/35°C
27°C22/35°C
27°C22/35°C
28°C21/36°C
27°C24/32°C
26°C23/33°C
--°C/°C
55AQI
49AQI
56AQI
53AQI
2025 Days Vs Air Quality
Jinyun Middle School, Guli, Zhejiang, China
18%
46
70%
184
12%
32
Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)
Under WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2025, 18% 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
Jinyun Middle School, Guli, Zhejiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
138AQI
134AQI
136AQI
117AQI
121AQI
129AQI
134AQI
135AQI
111AQI
93AQI
96AQI
102AQI
114AQI
111AQI
127AQI
85AQI
104AQI
100AQI
98AQI
121AQI
137AQI
133AQI
112AQI
97AQI
86AQI
68AQI
66AQI
69AQI
108AQI
82AQI
95AQI
61AQI
68AQI
107AQI
86AQI
82AQI
86AQI
74AQI
65AQI
72AQI
87AQI
68AQI
94AQI
123AQI
113AQI
133AQI
90AQI
110AQI
88AQI
87AQI
67AQI
62AQI
66AQI
86AQI
118AQI
126AQI
130AQI
110AQI
95AQI
93AQI
78AQI
87AQI
55AQI
70AQI
62AQI
84AQI
91AQI
95AQI
108AQI
106AQI
92AQI
66AQI
74AQI
42AQI
73AQI
61AQI
70AQI
77AQI
74AQI
76AQI
78AQI
84AQI
89AQI
94AQI
117AQI
112AQI
81AQI
81AQI
77AQI
72AQI
75AQI
75AQI
87AQI
84AQI
86AQI
88AQI
88AQI
90AQI
98AQI
78AQI
83AQI
97AQI
90AQI
96AQI
78AQI
85AQI
88AQI
91AQI
87AQI
90AQI
83AQI
66AQI
70AQI
66AQI
66AQI
68AQI
71AQI
72AQI
80AQI
76AQI
78AQI
79AQI
85AQI
77AQI
70AQI
81AQI
91AQI
73AQI
66AQI
72AQI
72AQI
72AQI
74AQI
74AQI
84AQI
76AQI
75AQI
68AQI
69AQI
69AQI
61AQI
69AQI
55AQI
75AQI
84AQI
86AQI
85AQI
70AQI
64AQI
73AQI
72AQI
68AQI
60AQI
58AQI
66AQI
60AQI
67AQI
76AQI
61AQI
59AQI
56AQI
51AQI
56AQI
43AQI
51AQI
53AQI
56AQI
60AQI
53AQI
52AQI
48AQI
50AQI
53AQI
47AQI
51AQI
54AQI
51AQI
53AQI
48AQI
50AQI
45AQI
44AQI
43AQI
48AQI
52AQI
50AQI
45AQI
39AQI
44AQI
41AQI
44AQI
42AQI
42AQI
45AQI
53AQI
58AQI
60AQI
56AQI
56AQI
44AQI
43AQI
38AQI
40AQI
40AQI
37AQI
38AQI
33AQI
36AQI
37AQI
39AQI
43AQI
40AQI
54AQI
59AQI
57AQI
57AQI
51AQI
52AQI
47AQI
51AQI
53AQI
57AQI
58AQI
58AQI
49AQI
43AQI
46AQI
51AQI
50AQI
46AQI
50AQI
53AQI
55AQI
52AQI
54AQI
53AQI
53AQI
51AQI
48AQI
49AQI
47AQI
48AQI
53AQI
54AQI
54AQI
57AQI
62AQI
62AQI
59AQI
61AQI
59AQI
56AQI
55AQI
54AQI
55AQI
54AQI
54AQI
60AQI
51AQI
52AQI
50AQI
46AQI
108AQI
91AQI
81AQI
82AQI
74AQI
55AQI
44AQI
52AQI
56AQI
No. of days
202572AQI
Highest AQI recorded in
January108AQI
Lowest AQI recorded in
July44AQI
202465AQI
Highest AQI recorded in
December109AQI
Lowest AQI recorded in
April48AQI
202381AQI
Highest AQI recorded in
November82AQI
Lowest AQI recorded in
December80AQI
202260AQI
Highest AQI recorded in
April69AQI
Lowest AQI recorded in
October48AQI
202167AQI
Highest AQI recorded in
January102AQI
Lowest AQI recorded in
August44AQI
202071AQI
Highest AQI recorded in
December105AQI
Lowest AQI recorded in
June44AQI
Most & Least Polluted Years Over the Last 6 Years
Jinyun Middle School's annual 2025 AQI (72) shows an average percentage change of 5.5% (worsened AQI) compared to previous years: 2020 (71), 2021 (67), 2022 (60), 2023 (81), 2024 (65).