Liege, Wallonia, Belgium Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Liege, Wallonia, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 37 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Liege, Wallonia, Belgium
74%
134
25%
45
1%
2
Total number of days with different AQI categories in last 182 days in 2025 (183 days remaining)
Under WHO’s Safe Air Quality Limits: 74%
Health Risk Level:
Low
In 2025, 74% of 182 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
Liege, Wallonia, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI
31AQI
27AQI
32AQI
22AQI
23AQI
24AQI
21AQI
29AQI
36AQI
55AQI
73AQI
65AQI
59AQI
63AQI
52AQI
66AQI
56AQI
74AQI
75AQI
86AQI
50AQI
42AQI
21AQI
26AQI
24AQI
26AQI
27AQI
24AQI
23AQI
40AQI
49AQI
61AQI
78AQI
58AQI
48AQI
65AQI
41AQI
57AQI
58AQI
104AQI
41AQI
57AQI
90AQI
95AQI
65AQI
52AQI
61AQI
72AQI
74AQI
59AQI
30AQI
27AQI
25AQI
24AQI
27AQI
34AQI
24AQI
29AQI
56AQI
64AQI
54AQI
68AQI
65AQI
52AQI
42AQI
59AQI
76AQI
84AQI
90AQI
43AQI
51AQI
34AQI
50AQI
57AQI
43AQI
26AQI
31AQI
37AQI
49AQI
22AQI
15AQI
42AQI
114AQI
45AQI
63AQI
63AQI
29AQI
36AQI
23AQI
32AQI
27AQI
39AQI
39AQI
45AQI
15AQI
19AQI
19AQI
52AQI
44AQI
56AQI
42AQI
33AQI
35AQI
24AQI
18AQI
21AQI
27AQI
20AQI
40AQI
14AQI
25AQI
20AQI
36AQI
59AQI
60AQI
32AQI
35AQI
39AQI
35AQI
31AQI
35AQI
78AQI
20AQI
21AQI
17AQI
36AQI
24AQI
17AQI
15AQI
16AQI
17AQI
20AQI
32AQI
38AQI
23AQI
37AQI
40AQI
36AQI
24AQI
36AQI
29AQI
17AQI
18AQI
16AQI
21AQI
18AQI
14AQI
21AQI
16AQI
28AQI
22AQI
28AQI
29AQI
23AQI
16AQI
13AQI
13AQI
15AQI
26AQI
46AQI
33AQI
37AQI
42AQI
40AQI
32AQI
27AQI
29AQI
35AQI
35AQI
28AQI
26AQI
25AQI
20AQI
19AQI
17AQI
18AQI
17AQI
16AQI
17AQI
20AQI
42AQI
54AQI
51AQI
33AQI
26AQI
25AQI
No. of days
202538AQI
Highest AQI recorded in
February54AQI
Lowest AQI recorded in
June25AQI
202427AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
July15AQI
202328AQI
Highest AQI recorded in
May42AQI
Lowest AQI recorded in
November17AQI
202230AQI
Highest AQI recorded in
March62AQI
Lowest AQI recorded in
November7AQI
202135AQI
Highest AQI recorded in
April46AQI
Lowest AQI recorded in
August24AQI
202029AQI
Highest AQI recorded in
March50AQI
Lowest AQI recorded in
July19AQI
Most & Least Polluted Years Over the Last 6 Years
Liege's annual 2025 AQI (38) shows an average percentage change of 29.8% (worsened AQI) compared to previous years: 2020 (29), 2021 (35), 2022 (30), 2023 (28), 2024 (27).
