Shuidunzhen, Heyuan, Guangdong Province, 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
Shuidunzhen, Heyuan, Guangdong Province, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 49 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Shuidunzhen, Heyuan, Guangdong Province, China
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
53AQI
19AQI
53AQI
38AQI
In the last 24 hours,
Shuidunzhen's AQI reached its highest point of 53 at 6 AM during the Day, while the lowest point, 19, was recorded at 10 AM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Shuidunzhen, Heyuan, Guangdong Province, China
27°C23/33°C
27°C23/33°C
27°C22/34°C
27°C22/35°C
26°C22/33°C
25°C22/32°C
27°C22/33°C
26°C22/32°C
27°C23/34°C
27°C23/34°C
27°C23/34°C
28°C23/35°C
27°C23/34°C
27°C23/32°C
28°C22/35°C
25°C23/29°C
24°C23/26°C
25°C22/30°C
26°C23/32°C
26°C23/32°C
27°C22/34°C
27°C22/34°C
27°C22/34°C
26°C22/34°C
27°C22/34°C
26°C23/34°C
26°C23/33°C
23°C23/24°C
24°C23/25°C
25°C22/30°C
--°C/°C
54AQI
44AQI
54AQI
49AQI
2025 Days Vs Air Quality
Shuidunzhen, Heyuan, Guangdong Province, China
47%
54
53%
62
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 47%
Health Risk Level:
Significant
In 2025, 47% of 265 days were within WHO’s safe air quality limits, and 53% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Shuidunzhen, Heyuan, Guangdong Province, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI
46AQI
55AQI
63AQI
58AQI
42AQI
62AQI
62AQI
64AQI
66AQI
56AQI
61AQI
58AQI
55AQI
55AQI
49AQI
47AQI
44AQI
42AQI
38AQI
47AQI
45AQI
41AQI
37AQI
30AQI
32AQI
38AQI
41AQI
43AQI
42AQI
42AQI
42AQI
40AQI
40AQI
40AQI
46AQI
51AQI
52AQI
52AQI
60AQI
63AQI
62AQI
51AQI
48AQI
52AQI
54AQI
55AQI
56AQI
58AQI
61AQI
56AQI
56AQI
50AQI
48AQI
49AQI
49AQI
51AQI
54AQI
54AQI
56AQI
54AQI
53AQI
55AQI
51AQI
55AQI
53AQI
50AQI
53AQI
45AQI
46AQI
47AQI
51AQI
56AQI
52AQI
51AQI
56AQI
57AQI
47AQI
47AQI
49AQI
49AQI
45AQI
41AQI
44AQI
46AQI
50AQI
54AQI
50AQI
51AQI
51AQI
51AQI
52AQI
52AQI
50AQI
53AQI
54AQI
56AQI
56AQI
47AQI
60AQI
62AQI
57AQI
47AQI
46AQI
45AQI
49AQI
49AQI
50AQI
53AQI
55AQI
51AQI
53AQI
52AQI
48AQI
46AQI
49AQI
44AQI
48AQI
53AQI
50AQI
52AQI
No. of days
202550AQI
Highest AQI recorded in
July53AQI
Lowest AQI recorded in
May44AQI
Most & Least Polluted Years Over the Last 1 Years
Shuidunzhen's annual 2025 AQI (50) shows an average percentage change of NaN% (improved AQI) compared to previous years: .