Brasschaat pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Brasschaat is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 25/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | Low | 22/100 |
Local Environmental Conditions
Brasschaat's tree pollen is dominated by oak and hornbeam, a pattern typical of Antwerpen and reinforced by its position on the sandy Campine plain north of Antwerp; grass and late-season herbs adds further exposure from nearby farmland through the warmer months. Parks and leafier streets tend to register higher counts than the built-up core.
oak and hornbeam defines the core of Brasschaat's pollen season after an early alder and hazel start, with grass and late-season herbs stretching exposure into summer across the January-to-August window. mugwort and ragweed extend exposure modestly into early autumn near open farmland. Brasschaat sits on the sandy Campine plain north of Antwerp, which shapes the tail end of the cycle.
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Frequently Asked Questions About Pollen in Antwerpen
Is pollen high in Brasschaat right now?
On 20 September 2026, overall pollen levels in Brasschaat are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Brasschaat tomorrow?
On 21 September 2026, pollen conditions in Brasschaat will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Brasschaat this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Brasschaat?
On 20 September 2026, Artemisia is the dominant pollen source in Brasschaat. cypress, grass, and willow are not currently active.
When is pollen season in Brasschaat?
How often is the Brasschaat pollen forecast updated?
The Brasschaat pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Brasschaat come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Brasschaat based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Brasschaat, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
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Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
