Thanh pho Tan An, Long An, Vietnam Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Thanh pho Tan An, Long An, Vietnam
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 81 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Thanh pho Tan An, Long An, Vietnam
5 AM4th Oct 2025
5 PM
4 AM5th Oct 2025
92AQI
72AQI
138AQI
82AQI
In the last 24 hours,
Thanh pho Tan An's AQI reached its highest point of 138 at 1 AM during the Night, while the lowest point, 72, was recorded at 4 PM during the Day between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Thanh pho Tan An, Long An, Vietnam
28°C25/32°C
28°C25/33°C
28°C25/32°C
28°C24/33°C
27°C25/32°C
28°C25/34°C
28°C25/35°C
28°C25/33°C
28°C25/32°C
28°C25/33°C
28°C24/34°C
28°C26/31°C
27°C25/33°C
27°C24/31°C
26°C24/30°C
28°C24/33°C
28°C24/32°C
25°C24/27°C
26°C23/31°C
28°C25/33°C
26°C25/29°C
26°C25/29°C
26°C24/30°C
26°C24/30°C
27°C24/31°C
27°C24/31°C
27°C24/33°C
27°C24/33°C
27°C24/32°C
27°C24/32°C
--°C/°C
51AQI
42AQI
52AQI
46AQI
2025 Days Vs Air Quality
Thanh pho Tan An, Long An, Vietnam
91%
118
9%
11
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 278 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Thanh pho Tan An, Long An, Vietnam
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI
36AQI
41AQI
42AQI
46AQI
45AQI
43AQI
52AQI
44AQI
41AQI
28AQI
31AQI
34AQI
35AQI
34AQI
31AQI
41AQI
40AQI
39AQI
42AQI
44AQI
44AQI
44AQI
38AQI
36AQI
33AQI
34AQI
37AQI
38AQI
42AQI
40AQI
39AQI
40AQI
40AQI
37AQI
36AQI
46AQI
44AQI
42AQI
38AQI
37AQI
38AQI
40AQI
40AQI
40AQI
44AQI
43AQI
46AQI
42AQI
42AQI
45AQI
45AQI
46AQI
42AQI
43AQI
40AQI
43AQI
43AQI
43AQI
41AQI
42AQI
44AQI
46AQI
45AQI
50AQI
51AQI
51AQI
52AQI
50AQI
51AQI
49AQI
48AQI
51AQI
47AQI
45AQI
43AQI
43AQI
45AQI
44AQI
39AQI
38AQI
41AQI
43AQI
45AQI
43AQI
45AQI
44AQI
43AQI
42AQI
41AQI
42AQI
45AQI
45AQI
45AQI
44AQI
44AQI
45AQI
42AQI
45AQI
38AQI
40AQI
40AQI
45AQI
43AQI
46AQI
43AQI
41AQI
38AQI
39AQI
40AQI
40AQI
39AQI
38AQI
38AQI
43AQI
40AQI
39AQI
46AQI
44AQI
38AQI
30AQI
34AQI
44AQI
35AQI
63AQI
76AQI
98AQI
73AQI
81AQI
36AQI
39AQI
42AQI
45AQI
41AQI
82AQI
No. of days
202543AQI
Highest AQI recorded in
October82AQI
Lowest AQI recorded in
May36AQI
Most & Least Polluted Years Over the Last 1 Years
Thanh pho Tan An's annual 2025 AQI (43) shows an average percentage change of NaN% (improved AQI) compared to previous years: .