Engis, Seraing, Wallonia, Belgium Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Engis, Seraing, Wallonia, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (18th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 15 of Good air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
Engis, Seraing, Wallonia, Belgium
6 AM19th Sep 2025
8 PM
5 AM20th Sep 2025
30AQI
18AQI
32AQI
17AQI
In the last 24 hours,
Engis's AQI reached its highest point of 32 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Engis, Seraing, Wallonia, Belgium
18°C12/25°C
15°C9/20°C
14°C9/19°C
15°C8/22°C
17°C9/26°C
21°C13/30°C
21°C15/27°C
18°C13/23°C
16°C12/22°C
17°C11/22°C
18°C15/23°C
18°C14/23°C
17°C12/22°C
19°C16/24°C
18°C13/23°C
16°C11/22°C
17°C12/23°C
21°C13/29°C
20°C16/25°C
14°C11/17°C
16°C11/22°C
15°C11/19°C
14°C11/18°C
14°C12/18°C
14°C9/19°C
17°C14/20°C
15°C12/17°C
14°C10/19°C
17°C13/24°C
19°C12/27°C
--°C/°C
22AQI
19AQI
22AQI
19AQI
2025 Days Vs Air Quality
Engis, Seraing, Wallonia, Belgium
80%
209
20%
51
0.3%
1
Total number of days with different AQI categories in last 263 days in 2025 (102 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2025, 80% of 263 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
Engis, Seraing, Wallonia, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI
30AQI
26AQI
36AQI
21AQI
21AQI
22AQI
23AQI
27AQI
39AQI
57AQI
70AQI
66AQI
61AQI
67AQI
48AQI
61AQI
55AQI
70AQI
76AQI
84AQI
57AQI
42AQI
24AQI
28AQI
24AQI
28AQI
28AQI
23AQI
23AQI
43AQI
47AQI
58AQI
89AQI
62AQI
54AQI
60AQI
39AQI
55AQI
48AQI
97AQI
41AQI
59AQI
84AQI
88AQI
71AQI
51AQI
58AQI
67AQI
68AQI
62AQI
33AQI
28AQI
28AQI
24AQI
30AQI
34AQI
23AQI
27AQI
52AQI
62AQI
59AQI
75AQI
74AQI
57AQI
36AQI
54AQI
72AQI
96AQI
85AQI
44AQI
47AQI
25AQI
44AQI
52AQI
44AQI
22AQI
31AQI
34AQI
43AQI
22AQI
17AQI
52AQI
111AQI
43AQI
63AQI
77AQI
36AQI
31AQI
22AQI
27AQI
23AQI
37AQI
39AQI
45AQI
15AQI
18AQI
27AQI
57AQI
41AQI
65AQI
44AQI
35AQI
35AQI
23AQI
17AQI
18AQI
26AQI
20AQI
40AQI
19AQI
28AQI
26AQI
32AQI
56AQI
61AQI
32AQI
34AQI
45AQI
38AQI
34AQI
51AQI
73AQI
20AQI
18AQI
15AQI
30AQI
20AQI
15AQI
14AQI
15AQI
16AQI
24AQI
36AQI
34AQI
22AQI
30AQI
36AQI
39AQI
25AQI
37AQI
27AQI
15AQI
23AQI
15AQI
18AQI
17AQI
13AQI
19AQI
16AQI
31AQI
20AQI
24AQI
29AQI
26AQI
18AQI
13AQI
13AQI
14AQI
25AQI
46AQI
30AQI
34AQI
42AQI
39AQI
29AQI
26AQI
29AQI
35AQI
34AQI
27AQI
24AQI
23AQI
20AQI
20AQI
17AQI
18AQI
17AQI
16AQI
19AQI
20AQI
25AQI
35AQI
27AQI
23AQI
26AQI
19AQI
18AQI
18AQI
19AQI
26AQI
22AQI
23AQI
24AQI
30AQI
24AQI
20AQI
22AQI
25AQI
21AQI
19AQI
15AQI
14AQI
14AQI
29AQI
34AQI
37AQI
27AQI
20AQI
23AQI
23AQI
22AQI
21AQI
21AQI
20AQI
22AQI
22AQI
24AQI
23AQI
24AQI
43AQI
36AQI
43AQI
43AQI
53AQI
57AQI
54AQI
51AQI
37AQI
25AQI
27AQI
34AQI
34AQI
24AQI
22AQI
20AQI
21AQI
27AQI
29AQI
31AQI
21AQI
18AQI
17AQI
16AQI
16AQI
17AQI
20AQI
18AQI
18AQI
20AQI
23AQI
24AQI
23AQI
20AQI
17AQI
16AQI
16AQI
14AQI
16AQI
17AQI
15AQI
42AQI
53AQI
51AQI
34AQI
26AQI
25AQI
23AQI
30AQI
18AQI
No. of days
202534AQI
Highest AQI recorded in
February53AQI
Lowest AQI recorded in
September18AQI
202428AQI
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
April15AQI
202330AQI
Highest AQI recorded in
June42AQI
Lowest AQI recorded in
November16AQI
202232AQI
Highest AQI recorded in
March61AQI
Lowest AQI recorded in
November10AQI
202138AQI
Highest AQI recorded in
March54AQI
Lowest AQI recorded in
August27AQI
202036AQI
Highest AQI recorded in
April53AQI
Lowest AQI recorded in
October24AQI
Most & Least Polluted Years Over the Last 6 Years
Engis's annual 2025 AQI (34) shows an average percentage change of 6.2% (worsened AQI) compared to previous years: 2020 (36), 2021 (38), 2022 (32), 2023 (30), 2024 (28).