Area A - Hamilton Army Air Field Discontiguous Historic District, Santa Venetia Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (7 October) pollen in Area A - Hamilton Army Air Field Discontiguous Historic District, Santa Venetia is moderate; ragweed, mold (alternaria), and mold (cladosporium) are moderate; grass is low.
Pollen Tomorrow
Tomorrow (8 October 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; ragweed, mold (alternaria), and mold (cladosporium) will decrease; grass will remain stable.
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Pollen Risk
Today - 7 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) | Low | 11/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Moderate | 43/100 |
| Alternaria | Moderate | 29/100 |
| Cladosporium | Moderate | 29/100 |
Tomorrow - 8 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) | Low | 12/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Moderate | 44/100 | |
| Alternaria | Moderate | 30/100 | |
| Cladosporium | Moderate | 27/100 |
Local Environmental Conditions
The area around this part of Santa Venetia is a patchwork of open grassland, built-up land and farmland. Lawns and planted trees in a nearby park add to local grass and tree pollen. Oak stands out as the main allergenic tree nearby. Compared with most places, oak is especially widespread here, which makes it one of the key local allergens.
Oak leads the season in mid-spring, as temperatures climb to around 10°C, and tree pollen reaches its peak. Grasses take over in early summer, with temperatures around 15°C, and their pollen lingers into early fall. The season closes with plantain and mugwort from mid-spring into early fall. The oak period in mid-spring is usually the most intense time of year here.
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Frequently Asked Questions About Pollen in California
Is pollen high in Santa Venetia right now?
On 7 October 2026, overall pollen levels in Santa Venetia are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Santa Venetia tomorrow?
On 8 October 2026, pollen conditions in Santa Venetia will be similar to today, with ambrosia at moderate levels, grass at low levels
Is pollen expected to decrease in Santa Venetia this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Santa Venetia?
On 7 October 2026, Ambrosia is the dominant pollen source in Santa Venetia. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Santa Venetia?
How often is the Santa Venetia pollen forecast updated?
The Santa Venetia pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Santa Venetia 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 Santa Venetia 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 Santa Venetia, 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. |
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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).
