Sanmen Ring Supervision Station, Linhai, 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
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (17th August):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 36 of Good air quality, showing improvement over 2025 and 2024 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
5 AM16th Aug 2026
6 PM
4 AM17th Aug 2026
65AQI
21AQI
51AQI
31AQI
In the last 24 hours,
Sanmen Ring Supervision Station's AQI reached its highest point of 65 at 5 AM during the Day, while the lowest point, 21, was recorded at 10 AM during the Day between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
28°C23/36°C
27°C23/34°C
26°C23/31°C
27°C23/33°C
27°C21/35°C
27°C21/35°C
28°C23/34°C
27°C23/33°C
27°C23/32°C
26°C22/33°C
26°C21/33°C
28°C21/37°C
27°C21/37°C
28°C20/37°C
29°C22/38°C
28°C23/37°C
27°C20/35°C
27°C22/34°C
27°C21/34°C
27°C21/34°C
25°C22/28°C
24°C23/25°C
25°C23/26°C
25°C23/29°C
26°C23/32°C
25°C22/29°C
27°C23/32°C
26°C22/32°C
26°C22/30°C
15°C10/21°C
52AQI
38AQI
46AQI
43AQI
2026 Days Vs Air Quality
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
39%
90
50%
115
10%
23
0.4%
1
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Under WHO’s Safe Air Quality Limits: 39%
Health Risk Level:
High
In 2026, 39% of 229 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
Sanmen Ring Supervision Station, Linhai, Zhejiang, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI (US)
83AQI (US)
122AQI (US)
101AQI (US)
96AQI (US)
148AQI (US)
107AQI (US)
107AQI (US)
126AQI (US)
120AQI (US)
85AQI (US)
78AQI (US)
102AQI (US)
100AQI (US)
87AQI (US)
123AQI (US)
114AQI (US)
81AQI (US)
58AQI (US)
26AQI (US)
72AQI (US)
106AQI (US)
105AQI (US)
139AQI (US)
154AQI (US)
120AQI (US)
47AQI (US)
89AQI (US)
56AQI (US)
58AQI (US)
18AQI (US)
70AQI (US)
109AQI (US)
108AQI (US)
58AQI (US)
88AQI (US)
87AQI (US)
46AQI (US)
90AQI (US)
62AQI (US)
59AQI (US)
100AQI (US)
148AQI (US)
125AQI (US)
87AQI (US)
75AQI (US)
49AQI (US)
77AQI (US)
111AQI (US)
117AQI (US)
86AQI (US)
62AQI (US)
70AQI (US)
78AQI (US)
39AQI (US)
44AQI (US)
42AQI (US)
18AQI (US)
54AQI (US)
57AQI (US)
25AQI (US)
52AQI (US)
42AQI (US)
28AQI (US)
74AQI (US)
75AQI (US)
53AQI (US)
43AQI (US)
71AQI (US)
56AQI (US)
68AQI (US)
102AQI (US)
83AQI (US)
65AQI (US)
49AQI (US)
75AQI (US)
66AQI (US)
47AQI (US)
114AQI (US)
55AQI (US)
56AQI (US)
66AQI (US)
38AQI (US)
67AQI (US)
91AQI (US)
52AQI (US)
62AQI (US)
81AQI (US)
61AQI (US)
35AQI (US)
28AQI (US)
67AQI (US)
73AQI (US)
36AQI (US)
80AQI (US)
87AQI (US)
47AQI (US)
41AQI (US)
54AQI (US)
87AQI (US)
90AQI (US)
21AQI (US)
90AQI (US)
76AQI (US)
80AQI (US)
43AQI (US)
73AQI (US)
82AQI (US)
84AQI (US)
102AQI (US)
47AQI (US)
35AQI (US)
18AQI (US)
53AQI (US)
54AQI (US)
72AQI (US)
88AQI (US)
93AQI (US)
19AQI (US)
44AQI (US)
69AQI (US)
62AQI (US)
57AQI (US)
55AQI (US)
45AQI (US)
38AQI (US)
54AQI (US)
48AQI (US)
37AQI (US)
39AQI (US)
54AQI (US)
45AQI (US)
46AQI (US)
27AQI (US)
38AQI (US)
75AQI (US)
60AQI (US)
53AQI (US)
46AQI (US)
61AQI (US)
68AQI (US)
73AQI (US)
66AQI (US)
64AQI (US)
56AQI (US)
49AQI (US)
85AQI (US)
83AQI (US)
88AQI (US)
45AQI (US)
35AQI (US)
53AQI (US)
73AQI (US)
77AQI (US)
73AQI (US)
72AQI (US)
44AQI (US)
63AQI (US)
35AQI (US)
24AQI (US)
50AQI (US)
61AQI (US)
75AQI (US)
44AQI (US)
22AQI (US)
44AQI (US)
23AQI (US)
49AQI (US)
42AQI (US)
25AQI (US)
38AQI (US)
55AQI (US)
54AQI (US)
35AQI (US)
35AQI (US)
27AQI (US)
47AQI (US)
72AQI (US)
76AQI (US)
48AQI (US)
56AQI (US)
31AQI (US)
29AQI (US)
42AQI (US)
38AQI (US)
24AQI (US)
42AQI (US)
29AQI (US)
51AQI (US)
43AQI (US)
28AQI (US)
29AQI (US)
23AQI (US)
28AQI (US)
27AQI (US)
26AQI (US)
61AQI (US)
68AQI (US)
66AQI (US)
64AQI (US)
36AQI (US)
54AQI (US)
56AQI (US)
67AQI (US)
50AQI (US)
27AQI (US)
28AQI (US)
29AQI (US)
29AQI (US)
24AQI (US)
36AQI (US)
49AQI (US)
60AQI (US)
54AQI (US)
58AQI (US)
40AQI (US)
52AQI (US)
58AQI (US)
42AQI (US)
27AQI (US)
27AQI (US)
36AQI (US)
48AQI (US)
57AQI (US)
62AQI (US)
54AQI (US)
52AQI (US)
37AQI (US)
36AQI (US)
92AQI (US)
77AQI (US)
62AQI (US)
62AQI (US)
56AQI (US)
50AQI (US)
40AQI (US)
47AQI (US)
No. of days
202661AQI (US)
Highest AQI (US) recorded in
January92AQI (US)
Lowest AQI (US) recorded in
July40AQI (US)
202572AQI (US)
Highest AQI (US) recorded in
January105AQI (US)
Lowest AQI (US) recorded in
July47AQI (US)
202466AQI (US)
Highest AQI (US) recorded in
January120AQI (US)
Lowest AQI (US) recorded in
May47AQI (US)
202379AQI (US)
Highest AQI (US) recorded in
December79AQI (US)
Lowest AQI (US) recorded in
November71AQI (US)
202267AQI (US)
Highest AQI (US) recorded in
February79AQI (US)
Lowest AQI (US) recorded in
October55AQI (US)
202166AQI (US)
Highest AQI (US) recorded in
December107AQI (US)
Lowest AQI (US) recorded in
August44AQI (US)
202065AQI (US)
Highest AQI (US) recorded in
April84AQI (US)
Lowest AQI (US) recorded in
August54AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sanmen Ring Supervision Station's annual 2026 AQI (US) (61) shows an average percentage change of -11.3% (improved AQI (US)) compared to previous years: 2020 (65), 2021 (66), 2022 (67), 2023 (79), 2024 (66), 2025 (72).