Brussels, Brussels Capital Region, 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
Brussels, Brussels Capital Region, Belgium
AQI Trends: Highest and Lowest
Same Day Analysis (15th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 28 of Good air quality, showing improvement over 2025, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Mar - 15th Mar 2026
Brussels, Brussels Capital Region, Belgium
7 AM14th Mar 2026
6 PM
6 AM15th Mar 2026
32AQI
6AQI
44AQI
14AQI
In the last 24 hours,
Brussels's AQI reached its highest point of 44 at 2 AM during the Night, while the lowest point, 6, was recorded at 8 AM during the Day between 14th Mar and 15th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Brussels, Brussels Capital Region, Belgium
1°C0/4°C
1°C-1/5°C
5°C4/7°C
4°C2/6°C
3°C1/6°C
5°C4/5°C
6°C3/9°C
9°C7/11°C
11°C10/11°C
10°C8/12°C
11°C9/14°C
13°C9/18°C
13°C10/17°C
12°C10/16°C
9°C5/10°C
8°C4/12°C
10°C6/16°C
11°C7/16°C
12°C8/17°C
12°C7/18°C
13°C10/18°C
12°C9/17°C
12°C8/17°C
13°C9/18°C
11°C9/14°C
9°C6/12°C
8°C4/12°C
8°C6/10°C
5°C3/9°C
6°C2/11°C
37AQI
33AQI
44AQI
35AQI
2026 Days Vs Air Quality
Brussels, Brussels Capital Region, Belgium
82%
61
16%
12
1%
1
Total number of days with different AQI categories in last 75 days in 2026 (290 days remaining)
Under WHO’s Safe Air Quality Limits: 82%
Health Risk Level:
Low
In 2026, 82% of 75 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
Brussels, Brussels Capital Region, Belgium
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI (US)
23AQI (US)
27AQI (US)
29AQI (US)
51AQI (US)
47AQI (US)
38AQI (US)
46AQI (US)
14AQI (US)
55AQI (US)
66AQI (US)
20AQI (US)
12AQI (US)
26AQI (US)
24AQI (US)
18AQI (US)
31AQI (US)
58AQI (US)
72AQI (US)
64AQI (US)
26AQI (US)
36AQI (US)
47AQI (US)
40AQI (US)
65AQI (US)
108AQI (US)
45AQI (US)
37AQI (US)
64AQI (US)
31AQI (US)
13AQI (US)
30AQI (US)
28AQI (US)
46AQI (US)
11AQI (US)
37AQI (US)
38AQI (US)
34AQI (US)
36AQI (US)
31AQI (US)
21AQI (US)
33AQI (US)
32AQI (US)
39AQI (US)
43AQI (US)
34AQI (US)
12AQI (US)
32AQI (US)
39AQI (US)
34AQI (US)
40AQI (US)
31AQI (US)
14AQI (US)
27AQI (US)
32AQI (US)
32AQI (US)
32AQI (US)
29AQI (US)
20AQI (US)
29AQI (US)
38AQI (US)
40AQI (US)
64AQI (US)
49AQI (US)
49AQI (US)
97AQI (US)
83AQI (US)
80AQI (US)
35AQI (US)
18AQI (US)
32AQI (US)
28AQI (US)
22AQI (US)
28AQI (US)
40.74193548387097AQI (US)
30.964285714285715AQI (US)
46.13333333333333AQI (US)
No. of days
202638.13513513513514AQI (US)
Highest AQI (US) recorded in
March46.13333333333333AQI (US)
Lowest AQI (US) recorded in
February30.964285714285715AQI (US)
202539.64657534246575AQI (US)
Highest AQI (US) recorded in
February58.285714285714285AQI (US)
Lowest AQI (US) recorded in
September21.4AQI (US)
202439.76164383561644AQI (US)
Highest AQI (US) recorded in
November48.233333333333334AQI (US)
Lowest AQI (US) recorded in
April27.666666666666668AQI (US)
202339.76623376623377AQI (US)
Highest AQI (US) recorded in
June48.96666666666667AQI (US)
Lowest AQI (US) recorded in
November30.75862068965517AQI (US)
202245.01930501930502AQI (US)
Highest AQI (US) recorded in
August91AQI (US)
Lowest AQI (US) recorded in
November32AQI (US)
202145.36914600550964AQI (US)
Highest AQI (US) recorded in
November54.7AQI (US)
Lowest AQI (US) recorded in
May35.354838709677416AQI (US)
202041.88593155893536AQI (US)
Highest AQI (US) recorded in
April53.857142857142854AQI (US)
Lowest AQI (US) recorded in
October30.774193548387096AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Brussels's annual 2026 AQI (US) (38.13513513513514) shows an average percentage change of -8.6% (improved AQI (US)) compared to previous years: 2020 (41.88593155893536), 2021 (45.36914600550964), 2022 (45.01930501930502), 2023 (39.76623376623377), 2024 (39.76164383561644), 2025 (39.64657534246575).