Camping municipal de Brownsburg-Chatham pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Camping municipal de Brownsburg-Chatham is high; ragweed is high; grass is moderate; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed declining, grass no longer expected, mugwort no longer expected.
7-Day Trend
Over the next week grass, mugwort, and ragweed will increase.
Explore Forecasts
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
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) | Moderate | 27/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 20/100 |
| Ragweed (Ambrosia) | High | 51/100 |
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 | |
| Ragweed (Ambrosia) | Low | 22/100 |
Local Environmental Conditions
Located just outside the immediate area, this area has the riverbank shelters hazel and willow, two trees whose pollen travels readily on the breeze. Here, within the neighborhood, birch and oak share the canopy here, birch pollen in particular known to travel far on the wind. Comparable land cover in surrounding areas tends to produce a similar pollen mix overall.
Hazel and willow along the water get the season underway before other species, usually the first pollen source active, peaking sometime in February or March. Oak and birch in the woodland come next, through the heart of spring, generally peaking somewhere between April and May. Late spring brings rising grass pollen that crests in June, then yields to ragweed, the dominant late-summer and fall allergen through October.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Frequently Asked Questions About Pollen in Ontario
Is pollen high in Camping municipal de Brownsburg-Chatham right now?
On 20 September 2026, overall pollen levels in Camping municipal de Brownsburg-Chatham are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels
Will pollen levels change in Camping municipal de Brownsburg-Chatham tomorrow?
On 21 September 2026, pollen conditions in Camping municipal de Brownsburg-Chatham will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Camping municipal de Brownsburg-Chatham this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Camping municipal de Brownsburg-Chatham?
On 20 September 2026, Ambrosia is the dominant pollen source in Camping municipal de Brownsburg-Chatham. grass and artemisia are also present but at lower levels.
When is pollen season in Camping municipal de Brownsburg-Chatham?
How often is the Camping municipal de Brownsburg-Chatham pollen forecast updated?
The Camping municipal de Brownsburg-Chatham pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Camping municipal de Brownsburg-Chatham 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 Camping municipal de Brownsburg-Chatham 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 Camping municipal de Brownsburg-Chatham, 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. |
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).
