Thornton Heath Selhurst Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Thornton Heath Selhurst is low; mugwort, mold (alternaria), and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort, mold (alternaria), and mold (cladosporium) will decrease; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 10 October
| 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 | 5/100 |
| Mold (Alternaria) | Low | 4/100 |
| Mold (Cladosporium) | Low | 14/100 |
Tomorrow - 11 October
| 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 | 21/100 | |
| Mold (Alternaria) | Low | 5/100 | |
| Mold (Cladosporium) | Low | 15/100 |
Local Environmental Conditions
Around 69% of the area near the center of Thornton Heath Selhurst is built-up land, with a good deal of woodland. Maple, oak and ash are among the allergenic trees nearby. Weed pollen comes mainly from plantain and mugwort. Around here, street trees, parks and lawns are the main sources in the built-up parts.
Maple, oak and ash lead the season in mid-spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. The season closes with plantain and mugwort from late spring into late summer. By late fall, as temperatures fall to around 10°C, pollen levels are low again. Day to day, sunshine and wind lift the counts, while a spell of rain can bring them down sharply.
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Frequently Asked Questions About Pollen in Croydon
Is pollen high in Thornton Heath Selhurst right now?
On 10 October 2026, overall pollen levels in Thornton Heath Selhurst are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Thornton Heath Selhurst tomorrow?
On 11 October 2026, pollen conditions in Thornton Heath Selhurst will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Thornton Heath Selhurst this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Thornton Heath Selhurst?
On 10 October 2026, Artemisia is the dominant pollen source in Thornton Heath Selhurst. cypress, grass, and willow are not currently active.
When is pollen season in Thornton Heath Selhurst?
How often is the Thornton Heath Selhurst pollen forecast updated?
The Thornton Heath Selhurst pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Thornton Heath Selhurst 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 Thornton Heath Selhurst 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 Thornton Heath Selhurst, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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. |
Get More in the Airmine Pollen app
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).
