Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland 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
Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland
AQI Trends: Highest and Lowest
Same Day Analysis (15th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 25 of Good air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Feb - 15th Feb 2026
Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland
7 AM14th Feb 2026
5 PM
6 AM15th Feb 2026
32AQI
14AQI
57AQI
8AQI
In the last 24 hours,
Churzbreitenstrasse's AQI reached its highest point of 57 at 8 PM during the Night, while the lowest point, 8, was recorded at 10 PM during the Night between 14th Feb and 15th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland
0°C-2/4°C
1°C-1/5°C
0°C-2/5°C
-1°C-4/5°C
-1°C-3/6°C
-1°C-4/4°C
-1°C-4/5°C
-1°C-4/4°C
-1°C-3/1°C
-1°C-5/2°C
-1°C-6/5°C
-1°C-4/2°C
-1°C-5/1°C
-3°C-7/2°C
-3°C-6/3°C
-2°C-6/2°C
-1°C-6/4°C
0°C-3/5°C
0°C-3/5°C
1°C-2/7°C
1°C0/3°C
2°C1/6°C
1°C-2/6°C
0°C-3/5°C
1°C-1/6°C
2°C0/4°C
2°C1/5°C
2°C0/6°C
0°C-3/1°C
-2°C-4/1°C
45AQI
40AQI
58AQI
45AQI
2026 Days Vs Air Quality
Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland
52%
24
48%
22
Total number of days with different AQI categories in last 47 days in 2026 (318 days remaining)
Under WHO’s Safe Air Quality Limits: 52%
Health Risk Level:
Considerable
In 2026, 52% of 47 days were within WHO’s safe air quality limits, and 48% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Churzbreitenstrasse, Buchs, Sankt Gallen, Switzerland
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
98AQI (US)
62AQI (US)
28AQI (US)
35AQI (US)
62AQI (US)
54AQI (US)
66AQI (US)
27AQI (US)
19AQI (US)
16AQI (US)
44AQI (US)
29AQI (US)
40AQI (US)
48AQI (US)
52AQI (US)
57AQI (US)
72AQI (US)
63AQI (US)
62AQI (US)
56AQI (US)
55AQI (US)
66AQI (US)
69AQI (US)
79AQI (US)
76AQI (US)
28AQI (US)
26AQI (US)
55AQI (US)
33AQI (US)
35AQI (US)
37AQI (US)
49AQI (US)
54AQI (US)
48AQI (US)
42AQI (US)
71AQI (US)
62AQI (US)
23AQI (US)
35AQI (US)
55AQI (US)
64AQI (US)
20AQI (US)
10AQI (US)
24AQI (US)
33AQI (US)
25AQI (US)
50AQI (US)
41AQI (US)
No. of days
202647AQI (US)
Highest AQI (US) recorded in
January50AQI (US)
Lowest AQI (US) recorded in
February41AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
February60AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
202426AQI (US)
Highest AQI (US) recorded in
December42AQI (US)
Lowest AQI (US) recorded in
May16AQI (US)
202328AQI (US)
Highest AQI (US) recorded in
May43AQI (US)
Lowest AQI (US) recorded in
November19AQI (US)
202234AQI (US)
Highest AQI (US) recorded in
December56AQI (US)
Lowest AQI (US) recorded in
November29AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Churzbreitenstrasse's annual 2026 AQI (US) (47) shows an average percentage change of 49.9% (worsened AQI (US)) compared to previous years: 2022 (34), 2023 (28), 2024 (26), 2025 (42).