Longyan City Stations, Longyan, Fujian, 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
Longyan City Stations, Longyan, Fujian, China
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 45 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: 20th Sep - 21st Sep 2025
Longyan City Stations, Longyan, Fujian, China
5 AM20th Sep 2025
6 PM
4 AM21st Sep 2025
52AQI
19AQI
54AQI
44AQI
In the last 24 hours,
Longyan City Stations's AQI reached its highest point of 54 at 12 AM during the Night, while the lowest point, 19, was recorded at 11 AM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Longyan City Stations, Longyan, Fujian, China
24°C17/33°C
24°C16/34°C
25°C16/34°C
26°C20/34°C
25°C17/34°C
22°C15/32°C
25°C17/34°C
26°C18/34°C
23°C17/32°C
25°C18/31°C
24°C17/31°C
22°C16/31°C
23°C16/33°C
23°C17/32°C
24°C18/33°C
24°C17/32°C
22°C17/29°C
21°C16/30°C
22°C17/30°C
23°C16/32°C
22°C17/30°C
24°C17/32°C
25°C18/33°C
23°C17/32°C
24°C16/34°C
25°C17/34°C
25°C18/33°C
22°C16/31°C
21°C17/25°C
20°C16/24°C
--°C/°C
56AQI
39AQI
53AQI
46AQI
2025 Days Vs Air Quality
Longyan City Stations, Longyan, Fujian, China
34%
90
62%
163
3%
9
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 34%
Health Risk Level:
High
In 2025, 34% of 264 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
Longyan City Stations, Longyan, Fujian, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
118AQI
113AQI
99AQI
86AQI
90AQI
87AQI
101AQI
105AQI
98AQI
78AQI
87AQI
74AQI
83AQI
80AQI
79AQI
98AQI
75AQI
87AQI
81AQI
82AQI
83AQI
98AQI
85AQI
91AQI
74AQI
50AQI
59AQI
69AQI
91AQI
68AQI
70AQI
70AQI
63AQI
41AQI
64AQI
55AQI
69AQI
49AQI
64AQI
58AQI
65AQI
65AQI
107AQI
82AQI
82AQI
84AQI
73AQI
80AQI
103AQI
80AQI
82AQI
54AQI
66AQI
43AQI
51AQI
65AQI
84AQI
77AQI
79AQI
60AQI
62AQI
54AQI
58AQI
45AQI
40AQI
53AQI
61AQI
77AQI
83AQI
74AQI
67AQI
61AQI
56AQI
38AQI
40AQI
70AQI
53AQI
68AQI
69AQI
77AQI
80AQI
84AQI
106AQI
107AQI
111AQI
92AQI
84AQI
43AQI
39AQI
33AQI
52AQI
55AQI
61AQI
71AQI
77AQI
75AQI
80AQI
90AQI
96AQI
69AQI
83AQI
83AQI
98AQI
98AQI
90AQI
93AQI
80AQI
81AQI
68AQI
65AQI
64AQI
67AQI
59AQI
53AQI
34AQI
47AQI
57AQI
48AQI
63AQI
68AQI
76AQI
74AQI
75AQI
78AQI
64AQI
63AQI
53AQI
63AQI
45AQI
53AQI
48AQI
63AQI
67AQI
65AQI
65AQI
55AQI
57AQI
56AQI
50AQI
52AQI
51AQI
56AQI
51AQI
42AQI
59AQI
66AQI
67AQI
66AQI
41AQI
50AQI
57AQI
48AQI
57AQI
35AQI
58AQI
47AQI
64AQI
63AQI
66AQI
54AQI
54AQI
54AQI
46AQI
54AQI
46AQI
39AQI
37AQI
37AQI
49AQI
45AQI
41AQI
36AQI
29AQI
35AQI
43AQI
49AQI
45AQI
43AQI
45AQI
45AQI
45AQI
51AQI
51AQI
52AQI
52AQI
47AQI
49AQI
53AQI
61AQI
60AQI
47AQI
46AQI
54AQI
49AQI
52AQI
54AQI
59AQI
58AQI
58AQI
42AQI
48AQI
42AQI
45AQI
40AQI
38AQI
41AQI
51AQI
48AQI
43AQI
48AQI
44AQI
55AQI
55AQI
52AQI
47AQI
49AQI
43AQI
47AQI
49AQI
50AQI
54AQI
45AQI
46AQI
52AQI
51AQI
43AQI
44AQI
44AQI
45AQI
46AQI
40AQI
42AQI
45AQI
50AQI
52AQI
50AQI
48AQI
47AQI
47AQI
47AQI
44AQI
47AQI
53AQI
54AQI
56AQI
57AQI
49AQI
58AQI
54AQI
54AQI
47AQI
43AQI
47AQI
48AQI
48AQI
48AQI
53AQI
55AQI
56AQI
51AQI
44AQI
45AQI
85AQI
70AQI
66AQI
71AQI
59AQI
47AQI
50AQI
48AQI
51AQI
No. of days
202561AQI
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
June47AQI
202460AQI
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
June39AQI
202363AQI
Highest AQI recorded in
March88AQI
Lowest AQI recorded in
July40AQI
202263AQI
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
June34AQI
202168AQI
Highest AQI recorded in
January94AQI
Lowest AQI recorded in
June45AQI
202060AQI
Highest AQI recorded in
April80AQI
Lowest AQI recorded in
June39AQI
Most & Least Polluted Years Over the Last 6 Years
Longyan City Stations's annual 2025 AQI (61) shows an average percentage change of -2.4% (improved AQI) compared to previous years: 2020 (60), 2021 (68), 2022 (63), 2023 (63), 2024 (60).