Couch, Liege, Wallonia, Belgium Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Couch, Liege, Wallonia, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (5th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 45 of Good air quality, showing improvement over 2025 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Mar - 5th Mar 2026
Couch, Liege, Wallonia, Belgium
7 AM4th Mar 2026
6 PM
6 AM5th Mar 2026
62AQI
33AQI
79AQI
55AQI
In the last 24 hours,
Couch's AQI reached its highest point of 79 at 10 PM during the Night, while the lowest point, 33, was recorded at 5 PM during the Day between 4th Mar and 5th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Couch, Liege, Wallonia, Belgium
6°C2/11°C
5°C2/9°C
6°C4/8°C
7°C4/12°C
6°C3/12°C
4°C1/8°C
7°C4/10°C
10°C7/10°C
9°C7/10°C
6°C3/8°C
0°C-3/2°C
1°C-3/5°C
5°C3/7°C
3°C0/5°C
2°C-1/6°C
5°C4/5°C
5°C1/8°C
9°C7/10°C
11°C10/12°C
9°C7/11°C
11°C9/13°C
11°C7/18°C
12°C8/17°C
13°C9/17°C
9°C4/12°C
7°C2/13°C
8°C4/15°C
10°C5/17°C
10°C6/17°C
10°C5/18°C
33AQI
26AQI
43AQI
31AQI
2026 Days Vs Air Quality
Couch, Liege, Wallonia, Belgium
84%
54
14%
9
2%
1
Total number of days with different AQI categories in last 65 days in 2026 (300 days remaining)
Under WHO’s Safe Air Quality Limits: 84%
Health Risk Level:
Low
In 2026, 84% of 65 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Couch, Liege, Wallonia, Belgium
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI (US)
12AQI (US)
20AQI (US)
27AQI (US)
29AQI (US)
47AQI (US)
22AQI (US)
23AQI (US)
9AQI (US)
43AQI (US)
59AQI (US)
12AQI (US)
10AQI (US)
24AQI (US)
21AQI (US)
21AQI (US)
38AQI (US)
62AQI (US)
58AQI (US)
53AQI (US)
38AQI (US)
37AQI (US)
45AQI (US)
41AQI (US)
84AQI (US)
119AQI (US)
62AQI (US)
38AQI (US)
70AQI (US)
37AQI (US)
20AQI (US)
35AQI (US)
47AQI (US)
39AQI (US)
26AQI (US)
55AQI (US)
38AQI (US)
35AQI (US)
43AQI (US)
44AQI (US)
28AQI (US)
21AQI (US)
28AQI (US)
39AQI (US)
42AQI (US)
40AQI (US)
13AQI (US)
30AQI (US)
41AQI (US)
19AQI (US)
39AQI (US)
31AQI (US)
20AQI (US)
32AQI (US)
30AQI (US)
14AQI (US)
27AQI (US)
33AQI (US)
14AQI (US)
26AQI (US)
42AQI (US)
35AQI (US)
57AQI (US)
45AQI (US)
39AQI (US)
32AQI (US)
41AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March41AQI (US)
Lowest AQI (US) recorded in
February32AQI (US)
202535AQI (US)
Highest AQI (US) recorded in
February55AQI (US)
Lowest AQI (US) recorded in
September20AQI (US)
202428AQI (US)
Highest AQI (US) recorded in
January39AQI (US)
Lowest AQI (US) recorded in
July14AQI (US)
202332AQI (US)
Highest AQI (US) recorded in
June45AQI (US)
Lowest AQI (US) recorded in
November19AQI (US)
202231AQI (US)
Highest AQI (US) recorded in
March62AQI (US)
Lowest AQI (US) recorded in
November9AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
April48AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
July22AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Couch's annual 2026 AQI (US) (36) shows an average percentage change of 12.7% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (36), 2022 (31), 2023 (32), 2024 (28), 2025 (35).