City Environmental Monitoring Station, Zhanjiang, Guangdong, 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
City Environmental Monitoring Station, Zhanjiang, Guangdong, China
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 26 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
City Environmental Monitoring Station, Zhanjiang, Guangdong, China
4 AM28th Sep 2025
4 PM
3 AM29th Sep 2025
58AQI
22AQI
57AQI
22AQI
In the last 24 hours,
City Environmental Monitoring Station's AQI reached its highest point of 58 at 3 PM during the Day, while the lowest point, 22, was recorded at 3 AM during the Night between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
City Environmental Monitoring Station, Zhanjiang, Guangdong, China
28°C26/29°C
28°C26/30°C
28°C26/30°C
28°C27/31°C
29°C27/31°C
29°C27/31°C
28°C27/31°C
29°C27/31°C
29°C26/33°C
27°C26/28°C
28°C26/31°C
28°C26/31°C
28°C27/30°C
28°C27/31°C
28°C27/31°C
28°C27/30°C
28°C26/31°C
27°C26/30°C
28°C27/30°C
28°C26/30°C
29°C27/32°C
29°C26/32°C
28°C26/31°C
27°C26/30°C
28°C25/32°C
25°C23/27°C
26°C23/29°C
27°C26/29°C
28°C25/31°C
26°C25/27°C
--°C/°C
40AQI
35AQI
40AQI
38AQI
2025 Days Vs Air Quality
City Environmental Monitoring Station, Zhanjiang, Guangdong, China
39%
107
50%
135
11%
29
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2025, 39% of 272 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
City Environmental Monitoring Station, Zhanjiang, Guangdong, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
138AQI
147AQI
132AQI
128AQI
134AQI
134AQI
111AQI
121AQI
135AQI
118AQI
107AQI
90AQI
89AQI
115AQI
94AQI
129AQI
93AQI
110AQI
111AQI
116AQI
105AQI
98AQI
92AQI
78AQI
68AQI
50AQI
63AQI
72AQI
122AQI
81AQI
93AQI
67AQI
66AQI
60AQI
60AQI
76AQI
82AQI
88AQI
80AQI
84AQI
78AQI
76AQI
89AQI
98AQI
70AQI
94AQI
65AQI
115AQI
95AQI
86AQI
75AQI
68AQI
79AQI
96AQI
61AQI
107AQI
110AQI
104AQI
80AQI
79AQI
61AQI
67AQI
58AQI
62AQI
31AQI
43AQI
57AQI
75AQI
69AQI
69AQI
68AQI
61AQI
57AQI
59AQI
40AQI
71AQI
82AQI
83AQI
101AQI
98AQI
92AQI
86AQI
93AQI
93AQI
75AQI
76AQI
69AQI
42AQI
32AQI
46AQI
58AQI
81AQI
78AQI
79AQI
81AQI
86AQI
93AQI
85AQI
79AQI
73AQI
67AQI
72AQI
131AQI
133AQI
146AQI
144AQI
120AQI
104AQI
89AQI
73AQI
67AQI
80AQI
66AQI
73AQI
49AQI
61AQI
54AQI
57AQI
60AQI
65AQI
57AQI
62AQI
61AQI
59AQI
57AQI
58AQI
57AQI
50AQI
45AQI
50AQI
49AQI
60AQI
64AQI
60AQI
46AQI
42AQI
41AQI
47AQI
47AQI
50AQI
51AQI
47AQI
45AQI
35AQI
47AQI
69AQI
75AQI
62AQI
53AQI
50AQI
49AQI
50AQI
49AQI
57AQI
56AQI
45AQI
44AQI
40AQI
49AQI
52AQI
52AQI
50AQI
41AQI
41AQI
36AQI
39AQI
47AQI
46AQI
50AQI
47AQI
47AQI
47AQI
53AQI
47AQI
46AQI
41AQI
38AQI
38AQI
36AQI
36AQI
35AQI
35AQI
32AQI
33AQI
38AQI
42AQI
47AQI
47AQI
49AQI
53AQI
55AQI
54AQI
55AQI
55AQI
55AQI
55AQI
56AQI
56AQI
56AQI
54AQI
53AQI
43AQI
44AQI
44AQI
42AQI
52AQI
52AQI
54AQI
50AQI
52AQI
57AQI
52AQI
54AQI
55AQI
55AQI
56AQI
52AQI
51AQI
51AQI
55AQI
55AQI
49AQI
47AQI
47AQI
50AQI
51AQI
36AQI
34AQI
33AQI
32AQI
34AQI
37AQI
37AQI
35AQI
38AQI
43AQI
34AQI
33AQI
40AQI
43AQI
45AQI
40AQI
38AQI
39AQI
37AQI
36AQI
33AQI
31AQI
29AQI
45AQI
44AQI
39AQI
40AQI
35AQI
32AQI
34AQI
32AQI
32AQI
30AQI
30AQI
34AQI
51AQI
58AQI
53AQI
42AQI
46AQI
44AQI
59AQI
39AQI
44AQI
26AQI
106AQI
82AQI
68AQI
83AQI
53AQI
45AQI
49AQI
44AQI
39AQI
No. of days
202563AQI
Highest AQI recorded in
January106AQI
Lowest AQI recorded in
September39AQI
202466AQI
Highest AQI recorded in
December105AQI
Lowest AQI recorded in
July32AQI
202367AQI
Highest AQI recorded in
January96AQI
Lowest AQI recorded in
July43AQI
202268AQI
Highest AQI recorded in
December102AQI
Lowest AQI recorded in
July36AQI
202170AQI
Highest AQI recorded in
January117AQI
Lowest AQI recorded in
August42AQI
202065AQI
Highest AQI recorded in
December111AQI
Lowest AQI recorded in
June39AQI
Most & Least Polluted Years Over the Last 6 Years
City Environmental Monitoring Station's annual 2025 AQI (63) shows an average percentage change of -5.9% (improved AQI) compared to previous years: 2020 (65), 2021 (70), 2022 (68), 2023 (67), 2024 (66).