Canfield Township pollen forecast — Leffingwell Woods neighborhood
Pollen Today
Today (20 September) pollen in Leffingwell Woods, Canfield Township is moderate; ragweed is moderate; grass and mugwort are 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.
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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) | Low | 19/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 4/100 |
| Ragweed (Ambrosia) | Moderate | 34/100 |
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 | 10/100 |
Local Environmental Conditions
Nearby, a stone's throw away, around 50m, hazel and willow cluster near the water, an early and reliable source of allergenic pollen. A wooded stretch of oak and birch, with birch responsible for some of the sharpest spring counts; this sits a stone's throw away, around 100-200m. A green space where lawn grass and ornamental plantings top up the local grass and ragweed count; this sits at around 500m distant.
Near the bank, hazel and willow lead the seasonal calendar, peaking in late winter through March. Further into spring, the area's oak and birch stands drive the pollen count, usually hitting its highest point sometime between mid-April and mid-May. Grass pollen builds through late spring and peaks in June, with ragweed then rising to the fore from mid-August through October.
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Pollen forecast neighborhoods 18 neighborhoods
Sports venues in Canfield Township 1 sports venue
Frequently Asked Questions About Pollen in Ohio
Is pollen high in Canfield Township right now?
On 20 September 2026, overall pollen levels in Canfield Township are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Canfield Township tomorrow?
On 21 September 2026, pollen conditions in Canfield Township will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Canfield Township this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Canfield Township?
On 20 September 2026, Ambrosia is the dominant pollen source in Canfield Township. artemisia and grass are also present but at lower levels.
When is pollen season in Canfield Township?
How often is the Canfield Township pollen forecast updated?
The Canfield Township pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Canfield Township 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 Canfield Township 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 Canfield Township, 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).
