Pollen Count in Brusselse Voorstad
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Spring arrives in Brusselse Voorstad, Belgium. Trees start to bloom. They produce a lot of pollen. Pollen fills the air.
Updated: 2/11/2026
Pollen season for trees starts in March. It lasts until May. Trees like oak, birch, and beech produce a lot of pollen.
In late spring, grasses and weeds start to bloom. Their pollen season lasts from May to July. This makes people feel unwell outside.
Summer ends pollen season. Pollen levels decrease. The air becomes cleaner. People can enjoy the outdoors again.
Pollen Forecast Chart
Recommendations
When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in Brusselse Voorstad 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 0.6 | 0 | 0 | 0 | 0 | 0 |
| Feb | 45.8 | 0 | 0 | 0 | 0 | 0 |
| Mar | 2.3 | 526.6 | 0 | 0 | 0 | 0 |
| Apr | 0.4 | 580.5 | 9.5 | 0 | 0.9 | 0 |
| May | 0 | 9.2 | 80.6 | 0 | 2.5 | 0 |
| Jun | 0 | 0.2 | 645.2 | 105.9 | 0 | 0 |
| Jul | 0 | 0 | 255.2 | 536.2 | 0 | 0 |
| Aug | 0 | 0 | 63.5 | 97.2 | 0 | 1.1 |
| Sep | 0 | 0 | 4.5 | 3.4 | 0 | 8.2 |
| Oct | 0 | 0 | 0.2 | 0.1 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(3 km)