Zilang School, Nantong, Jiangsu, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Zilang School, Nantong, Jiangsu, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 52 of Moderate 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: 18th Oct - 19th Oct 2025
Zilang School, Nantong, Jiangsu, China
5 AM18th Oct 2025
5 PM
4 AM19th Oct 2025
AQI
AQI
57AQI
17AQI
In the last 24 hours,
Zilang School's AQI reached its highest point of 57 at 6 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Zilang School, Nantong, Jiangsu, China
25°C22/28°C
22°C21/24°C
23°C21/26°C
24°C21/28°C
26°C23/29°C
25°C24/27°C
25°C24/27°C
27°C24/30°C
25°C23/29°C
26°C24/31°C
23°C21/25°C
21°C21/22°C
23°C20/26°C
25°C23/30°C
23°C21/25°C
24°C21/27°C
26°C23/30°C
28°C25/32°C
25°C23/28°C
23°C21/27°C
23°C20/28°C
25°C22/29°C
26°C23/30°C
26°C23/29°C
24°C22/25°C
21°C20/21°C
24°C21/27°C
22°C21/24°C
23°C21/26°C
--°C/°C
--°C/°C
55AQI
52AQI
62AQI
56AQI
2025 Days Vs Air Quality
Zilang School, Nantong, Jiangsu, China
17%
49
65%
190
16%
47
2%
5
Total number of days with different AQI categories in last 291 days in 2025 (74 days remaining)
Under WHO’s Safe Air Quality Limits: 17%
Health Risk Level:
Extreme
In 2025, 17% of 291 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
Zilang School, Nantong, Jiangsu, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
113AQI
86AQI
98AQI
83AQI
143AQI
127AQI
117AQI
122AQI
68AQI
84AQI
107AQI
115AQI
136AQI
150AQI
82AQI
116AQI
124AQI
127AQI
154AQI
174AQI
165AQI
109AQI
101AQI
77AQI
65AQI
84AQI
70AQI
92AQI
123AQI
94AQI
112AQI
62AQI
112AQI
105AQI
113AQI
104AQI
80AQI
71AQI
65AQI
80AQI
93AQI
68AQI
136AQI
82AQI
92AQI
79AQI
143AQI
72AQI
102AQI
75AQI
66AQI
69AQI
87AQI
90AQI
101AQI
136AQI
148AQI
164AQI
135AQI
122AQI
118AQI
66AQI
62AQI
56AQI
78AQI
83AQI
122AQI
82AQI
88AQI
111AQI
72AQI
78AQI
61AQI
62AQI
76AQI
74AQI
65AQI
84AQI
104AQI
96AQI
100AQI
110AQI
102AQI
114AQI
129AQI
112AQI
88AQI
95AQI
69AQI
68AQI
73AQI
106AQI
78AQI
86AQI
101AQI
107AQI
108AQI
118AQI
136AQI
110AQI
134AQI
157AQI
101AQI
77AQI
76AQI
75AQI
87AQI
93AQI
97AQI
69AQI
79AQI
72AQI
98AQI
95AQI
71AQI
62AQI
72AQI
69AQI
80AQI
83AQI
76AQI
79AQI
67AQI
49AQI
66AQI
94AQI
81AQI
69AQI
47AQI
60AQI
68AQI
73AQI
74AQI
77AQI
102AQI
60AQI
86AQI
66AQI
83AQI
74AQI
58AQI
72AQI
50AQI
85AQI
72AQI
81AQI
67AQI
70AQI
84AQI
85AQI
87AQI
53AQI
39AQI
74AQI
95AQI
73AQI
77AQI
67AQI
38AQI
53AQI
50AQI
51AQI
47AQI
38AQI
62AQI
45AQI
52AQI
59AQI
59AQI
56AQI
50AQI
44AQI
29AQI
33AQI
36AQI
57AQI
66AQI
61AQI
54AQI
56AQI
55AQI
50AQI
56AQI
58AQI
62AQI
67AQI
66AQI
52AQI
44AQI
44AQI
70AQI
54AQI
49AQI
57AQI
57AQI
72AQI
72AQI
63AQI
56AQI
46AQI
43AQI
39AQI
37AQI
35AQI
42AQI
41AQI
34AQI
33AQI
33AQI
32AQI
30AQI
38AQI
54AQI
55AQI
55AQI
57AQI
57AQI
57AQI
51AQI
55AQI
55AQI
42AQI
51AQI
59AQI
54AQI
47AQI
46AQI
50AQI
54AQI
54AQI
56AQI
59AQI
64AQI
59AQI
57AQI
56AQI
59AQI
59AQI
58AQI
55AQI
57AQI
53AQI
55AQI
58AQI
54AQI
59AQI
67AQI
64AQI
65AQI
72AQI
60AQI
54AQI
54AQI
57AQI
59AQI
59AQI
62AQI
61AQI
68AQI
63AQI
44AQI
45AQI
45AQI
45AQI
46AQI
42AQI
36AQI
33AQI
36AQI
32AQI
47AQI
40AQI
61AQI
83AQI
65AQI
56AQI
65AQI
62AQI
87AQI
72AQI
49AQI
52AQI
52AQI
73AQI
94AQI
93AQI
51AQI
66AQI
58AQI
45AQI
52AQI
110AQI
98AQI
89AQI
92AQI
73AQI
54AQI
49AQI
55AQI
53AQI
65AQI
No. of days
202574AQI
Highest AQI recorded in
January110AQI
Lowest AQI recorded in
July49AQI
202468AQI
Highest AQI recorded in
January119AQI
Lowest AQI recorded in
July37AQI
202377AQI
Highest AQI recorded in
December115AQI
Lowest AQI recorded in
August40AQI
202279AQI
Highest AQI recorded in
January112AQI
Lowest AQI recorded in
July53AQI
202187AQI
Highest AQI recorded in
December119AQI
Lowest AQI recorded in
September52AQI
202093AQI
Highest AQI recorded in
December127AQI
Lowest AQI recorded in
March67AQI
Most & Least Polluted Years Over the Last 6 Years
Zilang School's annual 2025 AQI (74) shows an average percentage change of -7.6% (improved AQI) compared to previous years: 2020 (93), 2021 (87), 2022 (79), 2023 (77), 2024 (68).