Brøstadbotn pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Brøstadbotn is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort no longer expected.
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 | 3/100 |
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) | None | 0/100 |
Local Environmental Conditions
Brøstadbotn is a small Troms village in Dyrøy municipality on a fjord island where birch, alder, and island farmland vegetation are the main local pollen sources. The fjord island setting means onshore winds can frequently disperse pollen, while the subarctic Norwegian climate compresses the season with birch peaking through May before grass contributes briefly through June and July and the season ends early in this small Troms island community.
For Brøstadbotn, the pollen season covers the period from April through August, with the first releases of alder and hazel from the start of April, with birch soon overtaking as the main source which carries through June. Grass follows close behind through June and July. With the tundra and birch-scrub landscape surrounding Brøstadbotn, the local climate means pollen levels here don't always follow the national pattern exactly.
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Frequently Asked Questions About Pollen in Troms
Is pollen high in Brøstadbotn right now?
On 20 September 2026, overall pollen levels in Brøstadbotn are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Brøstadbotn tomorrow?
On 21 September 2026, pollen conditions in Brøstadbotn will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Brøstadbotn this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Brøstadbotn?
On 20 September 2026, Artemisia is the dominant pollen source in Brøstadbotn. cypress, grass, and willow are not currently active.
When is pollen season in Brøstadbotn?
How often is the Brøstadbotn pollen forecast updated?
The Brøstadbotn pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Brøstadbotn 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 Brøstadbotn 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 Brøstadbotn, 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).
