Oostrozebeke, Harelbeke, Flanders, 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
Oostrozebeke, Harelbeke, Flanders, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (23rd September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 17 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 23rd Sep - 24th Sep 2025
Oostrozebeke, Harelbeke, Flanders, Belgium
7 AM23rd Sep 2025
8 PM
6 AM24th Sep 2025
20AQI
16AQI
17AQI
12AQI
In the last 24 hours,
Oostrozebeke's AQI reached its highest point of 20 at 12 PM during the Day, while the lowest point, 12, was recorded at 5 AM during the Night between 23rd Sep and 24th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Oostrozebeke, Harelbeke, Flanders, Belgium
20°C12/27°C
22°C16/29°C
21°C15/27°C
19°C16/23°C
17°C14/21°C
19°C13/23°C
20°C17/25°C
19°C15/25°C
17°C13/23°C
19°C16/23°C
18°C14/23°C
17°C13/23°C
19°C13/26°C
22°C14/33°C
20°C15/24°C
17°C13/23°C
17°C13/23°C
16°C13/18°C
15°C12/20°C
15°C12/20°C
15°C10/21°C
17°C15/20°C
16°C14/20°C
16°C13/22°C
19°C16/25°C
21°C15/29°C
20°C17/23°C
14°C11/16°C
13°C10/17°C
14°C10/18°C
--°C/°C
26AQI
21AQI
24AQI
22AQI
2025 Days Vs Air Quality
Oostrozebeke, Harelbeke, Flanders, Belgium
70%
187
25%
67
5%
12
Total number of days with different AQI categories in last 267 days in 2025 (98 days remaining)
Under WHO’s Safe Air Quality Limits: 70%
Health Risk Level:
Low
In 2025, 70% of 267 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
Oostrozebeke, Harelbeke, Flanders, Belgium
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI
25AQI
31AQI
58AQI
31AQI
23AQI
24AQI
43AQI
34AQI
65AQI
109AQI
80AQI
88AQI
101AQI
94AQI
78AQI
79AQI
70AQI
94AQI
102AQI
90AQI
88AQI
64AQI
33AQI
37AQI
30AQI
22AQI
27AQI
34AQI
33AQI
51AQI
68AQI
83AQI
104AQI
70AQI
76AQI
70AQI
56AQI
66AQI
40AQI
141AQI
99AQI
89AQI
93AQI
123AQI
104AQI
70AQI
75AQI
83AQI
91AQI
76AQI
58AQI
47AQI
48AQI
32AQI
53AQI
41AQI
29AQI
43AQI
49AQI
75AQI
106AQI
119AQI
114AQI
89AQI
60AQI
72AQI
93AQI
131AQI
89AQI
42AQI
38AQI
30AQI
45AQI
50AQI
45AQI
45AQI
54AQI
63AQI
60AQI
41AQI
33AQI
81AQI
127AQI
66AQI
73AQI
62AQI
38AQI
46AQI
37AQI
44AQI
42AQI
57AQI
62AQI
55AQI
24AQI
38AQI
54AQI
59AQI
44AQI
61AQI
74AQI
51AQI
30AQI
43AQI
31AQI
42AQI
50AQI
40AQI
54AQI
48AQI
50AQI
29AQI
61AQI
60AQI
67AQI
56AQI
66AQI
65AQI
58AQI
60AQI
69AQI
62AQI
22AQI
24AQI
22AQI
35AQI
40AQI
32AQI
29AQI
28AQI
38AQI
48AQI
49AQI
45AQI
33AQI
39AQI
42AQI
44AQI
33AQI
50AQI
32AQI
23AQI
34AQI
27AQI
34AQI
26AQI
22AQI
33AQI
24AQI
31AQI
33AQI
26AQI
27AQI
20AQI
18AQI
30AQI
31AQI
18AQI
57AQI
63AQI
42AQI
50AQI
58AQI
49AQI
35AQI
37AQI
36AQI
42AQI
44AQI
48AQI
40AQI
38AQI
28AQI
34AQI
26AQI
27AQI
31AQI
31AQI
26AQI
31AQI
42AQI
47AQI
38AQI
29AQI
31AQI
25AQI
23AQI
24AQI
30AQI
34AQI
37AQI
32AQI
35AQI
44AQI
38AQI
31AQI
33AQI
36AQI
39AQI
32AQI
23AQI
20AQI
18AQI
30AQI
34AQI
43AQI
32AQI
27AQI
33AQI
34AQI
27AQI
23AQI
20AQI
21AQI
24AQI
22AQI
24AQI
27AQI
28AQI
34AQI
34AQI
45AQI
48AQI
55AQI
56AQI
44AQI
49AQI
36AQI
27AQI
27AQI
29AQI
25AQI
20AQI
20AQI
21AQI
23AQI
28AQI
28AQI
28AQI
23AQI
21AQI
19AQI
20AQI
19AQI
18AQI
19AQI
19AQI
19AQI
21AQI
22AQI
22AQI
23AQI
22AQI
20AQI
16AQI
17AQI
24AQI
34AQI
34AQI
42AQI
28AQI
31AQI
28AQI
20AQI
17AQI
57AQI
72AQI
67AQI
51AQI
36AQI
36AQI
32AQI
30AQI
23AQI
No. of days
202545AQI
Highest AQI recorded in
February72AQI
Lowest AQI recorded in
September23AQI
202442AQI
Highest AQI recorded in
January57AQI
Lowest AQI recorded in
April28AQI
202344AQI
Highest AQI recorded in
May53AQI
Lowest AQI recorded in
July30AQI
202250AQI
Highest AQI recorded in
March83AQI
Lowest AQI recorded in
November29AQI
202154AQI
Highest AQI recorded in
March64AQI
Lowest AQI recorded in
August39AQI
202048AQI
Highest AQI recorded in
April70AQI
Lowest AQI recorded in
July33AQI
Most & Least Polluted Years Over the Last 6 Years
Oostrozebeke's annual 2025 AQI (45) shows an average percentage change of -3.7% (improved AQI) compared to previous years: 2020 (48), 2021 (54), 2022 (50), 2023 (44), 2024 (42).