Longwan, Wenzhou, Zhejiang, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Longwan, Wenzhou, Zhejiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 58 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Longwan, Wenzhou, Zhejiang, China
5 AM5th Aug 2025
6 PM
4 AM6th Aug 2025
AQI
AQI
59AQI
42AQI
In the last 24 hours,
Longwan's AQI reached its highest point of 59 at 7 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Longwan, Wenzhou, Zhejiang, China
26°C24/30°C
25°C24/27°C
25°C23/27°C
25°C22/28°C
26°C22/31°C
26°C23/29°C
25°C23/27°C
28°C23/35°C
29°C23/34°C
29°C26/34°C
28°C26/31°C
28°C25/31°C
26°C24/27°C
26°C25/27°C
26°C24/27°C
25°C24/27°C
27°C23/31°C
27°C23/31°C
26°C24/31°C
26°C24/30°C
27°C23/31°C
26°C23/31°C
28°C22/34°C
28°C22/35°C
29°C24/36°C
29°C25/35°C
29°C25/35°C
29°C26/34°C
28°C25/33°C
--°C/°C
--°C/°C
44AQI
43AQI
48AQI
48AQI
2025 Days Vs Air Quality
Longwan, Wenzhou, Zhejiang, China
17%
36
67%
145
16%
35
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 17%
Health Risk Level:
Extreme
In 2025, 17% of 217 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
Longwan, Wenzhou, Zhejiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
105AQI
92AQI
104AQI
82AQI
96AQI
116AQI
130AQI
118AQI
110AQI
85AQI
91AQI
94AQI
111AQI
101AQI
126AQI
86AQI
117AQI
96AQI
105AQI
120AQI
142AQI
123AQI
103AQI
78AQI
77AQI
62AQI
65AQI
70AQI
103AQI
81AQI
92AQI
59AQI
51AQI
90AQI
110AQI
88AQI
111AQI
86AQI
69AQI
81AQI
83AQI
80AQI
92AQI
128AQI
88AQI
131AQI
112AQI
120AQI
76AQI
102AQI
63AQI
64AQI
71AQI
66AQI
130AQI
129AQI
141AQI
141AQI
104AQI
102AQI
91AQI
89AQI
67AQI
61AQI
50AQI
74AQI
93AQI
86AQI
88AQI
101AQI
74AQI
62AQI
65AQI
40AQI
68AQI
73AQI
82AQI
82AQI
103AQI
82AQI
90AQI
94AQI
114AQI
120AQI
100AQI
107AQI
68AQI
79AQI
63AQI
63AQI
66AQI
82AQI
92AQI
84AQI
82AQI
85AQI
86AQI
86AQI
98AQI
82AQI
87AQI
86AQI
88AQI
99AQI
83AQI
87AQI
102AQI
87AQI
80AQI
95AQI
78AQI
83AQI
62AQI
69AQI
54AQI
66AQI
70AQI
70AQI
69AQI
65AQI
72AQI
74AQI
81AQI
60AQI
73AQI
74AQI
89AQI
68AQI
75AQI
64AQI
67AQI
69AQI
65AQI
62AQI
62AQI
69AQI
74AQI
50AQI
69AQI
70AQI
50AQI
60AQI
61AQI
67AQI
89AQI
78AQI
65AQI
65AQI
49AQI
68AQI
73AQI
67AQI
75AQI
57AQI
73AQI
55AQI
65AQI
68AQI
57AQI
62AQI
52AQI
40AQI
44AQI
44AQI
55AQI
47AQI
45AQI
57AQI
56AQI
53AQI
49AQI
60AQI
71AQI
56AQI
60AQI
58AQI
61AQI
59AQI
51AQI
50AQI
45AQI
45AQI
51AQI
46AQI
52AQI
46AQI
42AQI
34AQI
37AQI
39AQI
46AQI
44AQI
44AQI
46AQI
56AQI
62AQI
60AQI
62AQI
52AQI
43AQI
43AQI
34AQI
37AQI
43AQI
33AQI
31AQI
35AQI
38AQI
36AQI
40AQI
43AQI
54AQI
56AQI
62AQI
61AQI
58AQI
99AQI
95AQI
82AQI
81AQI
68AQI
56AQI
44AQI
59AQI
No. of days
202575AQI
Highest AQI recorded in
January99AQI
Lowest AQI recorded in
July44AQI
202469AQI
Highest AQI recorded in
January120AQI
Lowest AQI recorded in
July42AQI
202373AQI
Highest AQI recorded in
December98AQI
Lowest AQI recorded in
September49AQI
202270AQI
Highest AQI recorded in
January98AQI
Lowest AQI recorded in
October51AQI
202174AQI
Highest AQI recorded in
January95AQI
Lowest AQI recorded in
July53AQI
202073AQI
Highest AQI recorded in
April97AQI
Lowest AQI recorded in
August54AQI
Most & Least Polluted Years Over the Last 6 Years
Longwan's annual 2025 AQI (75) shows an average percentage change of 4.1% (worsened AQI) compared to previous years: 2020 (73), 2021 (74), 2022 (70), 2023 (73), 2024 (69).