Knox Township pollen forecast — Zaleski Forest Horse Camp neighborhood
Pollen Today
Today (20 September) pollen in Zaleski Forest Horse Camp, Knox Township is moderate; grass and ragweed are moderate; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass declining, mugwort no longer expected, ragweed 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) | Moderate | 35/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 10/100 |
| Ragweed (Ambrosia) | Moderate | 29/100 |
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) | Low | 3/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | None | 0/100 |
Local Environmental Conditions
A waterway supports hazel and willow along its bank, both strongly allergenic wind-pollinated species, close to home here. Located just around the area, this area has oak and birch dominating the treeline, both heavy contributors to the spring pollen load. The broader area tends to mirror this pattern, with only minor local variation.
Near the bank, hazel and willow lead the seasonal calendar, getting an early start, typically cresting between February and March. Oak and birch in the woodland come next, through the heart of spring, peaking in the heart of spring, generally April into May. Through late spring, grass pollen climbs steadily toward its June peak, followed by ragweed's own peak stretch from mid-August into October.
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Resource Hub
Pollen forecast neighborhoods 1 neighborhood
Sports venues in Knox Township 1 sports venue
Frequently Asked Questions About Pollen in Ohio
Is pollen high in Knox Township right now?
On 20 September 2026, overall pollen levels in Knox Township are moderate. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Knox Township tomorrow?
On 21 September 2026, pollen conditions in Knox Township will be different from today, with grass continuing to decline
Is pollen expected to decrease in Knox Township this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Knox Township?
On 20 September 2026, Grass is the dominant pollen source in Knox Township. ambrosia and artemisia are also present but at lower levels.
When is pollen season in Knox Township?
How often is the Knox Township pollen forecast updated?
The Knox Township pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Knox 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 Knox 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 Knox 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. |
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).
