Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam
AQI Trends: Highest and Lowest
Same Day Analysis (7th February):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 80 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Feb - 7th Feb 2026
Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam
6 AM6th Feb 2026
5 PM
5 AM7th Feb 2026
160AQI
93AQI
125AQI
55AQI
In the last 24 hours,
Bac Ninh KCN Tien Son's AQI reached its highest point of 160 at 3 PM during the Day, while the lowest point, 55, was recorded at 4 AM during the Night between 6th Feb and 7th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam
16°C12/21°C
17°C12/22°C
18°C13/23°C
18°C13/23°C
20°C16/25°C
20°C16/26°C
20°C16/25°C
20°C17/23°C
20°C19/22°C
21°C19/24°C
21°C18/23°C
20°C19/22°C
17°C13/18°C
11°C10/12°C
12°C10/15°C
15°C13/17°C
17°C15/19°C
19°C17/21°C
21°C18/25°C
21°C18/27°C
20°C16/24°C
20°C18/22°C
19°C16/21°C
18°C15/22°C
17°C16/20°C
18°C14/25°C
20°C15/25°C
20°C17/23°C
22°C20/25°C
23°C20/28°C
134AQI
123AQI
132AQI
122AQI
2026 Days Vs Air Quality
Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam
26%
10
50%
19
24%
9
Total number of days with different AQI categories in last 39 days in 2026 (326 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 39 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
Bac Ninh KCN Tien Son, Bac Ninh, Bac Ninh, Vietnam
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
118AQI (US)
69AQI (US)
117AQI (US)
151AQI (US)
96AQI (US)
68AQI (US)
115AQI (US)
141AQI (US)
165AQI (US)
156AQI (US)
151AQI (US)
148AQI (US)
175AQI (US)
158AQI (US)
160AQI (US)
142AQI (US)
107AQI (US)
128AQI (US)
131AQI (US)
102AQI (US)
85AQI (US)
57AQI (US)
66AQI (US)
98AQI (US)
130AQI (US)
147AQI (US)
161AQI (US)
150AQI (US)
136AQI (US)
100AQI (US)
101AQI (US)
90AQI (US)
121AQI (US)
150AQI (US)
151AQI (US)
147AQI (US)
129AQI (US)
80AQI (US)
124AQI (US)
124AQI (US)
No. of days
2026124AQI (US)
Highest AQI (US) recorded in
February124AQI (US)
Lowest AQI (US) recorded in
January124AQI (US)
202579AQI (US)
Highest AQI (US) recorded in
December139AQI (US)
Lowest AQI (US) recorded in
June43AQI (US)
202461AQI (US)
Highest AQI (US) recorded in
December114AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202369AQI (US)
Highest AQI (US) recorded in
August137AQI (US)
Lowest AQI (US) recorded in
April31AQI (US)
202227AQI (US)
Highest AQI (US) recorded in
August66AQI (US)
Lowest AQI (US) recorded in
July20AQI (US)
202138AQI (US)
Highest AQI (US) recorded in
June51AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Bac Ninh KCN Tien Son's annual 2026 AQI (US) (124) shows an average percentage change of 162.6% (worsened AQI (US)) compared to previous years: 2021 (38), 2022 (27), 2023 (69), 2024 (61), 2025 (79).