Pollen (Premium Layer)

The Pollen Layer helps you monitor and assess airborne pollen levels across a given region. It is especially useful for users in healthcare, agriculture, event planning, and operational teams managing allergy-related risk or environmental exposure.

🔒 This is a premium feature. For access, please contact your Tomorrow.io account team or sales@tomorrow.io.

What the Pollen Layer Shows

The Pollen Layer provides both real-time and forecasted pollen data based on advanced modeling techniques. It is primarily focused on tree pollen, but also contributes to broader allergen awareness.

The Pollen Layer includes several index fields representing different pollen sources. Each index reflects the estimated concentration of airborne particles in a given area, based on grains per cubic meter (grains/m³). All indices follow the same 0–5 scale:

Available Index Fields

treeIndex – Tree pollen concentration

grassIndex – Grass pollen concentration

weedIndex – Weed pollen concentration

ragweedIndex – Ragweed pollen concentration

Index Scale

• Localized Forecasting
  Data is generated using a combination of statistical, physical, and chemical models to reflect highly localized pollen behavior.

How to View the Pollen Layer

You can access the Pollen Layer in two ways:

In the Tomorrow.io Platform

1. Go to the Map Layers menu
2. Enable the Pollen layer
3. Use the timeline to explore pollen levels for your selected area and timeframe

This allows you to easily visualize airborne pollen exposure across operational regions.

Via the Tomorrow.io API

• Query the fields in your API call to retrieve structured pollen data.
• Use filters and time ranges to analyze historical or forecasted exposure.

For more information on using the Pollen Data Layer or integrating it with your application, refer to our API documentation, or use the AI-powered smart search feature in the docs for specific details. Users can simply enter a free-text query, similar to interacting with an AI assistant, to ask questions and find the information they need with ease.

Additionally, our customized API assistant simplifies the process by guiding you through building queries or accessing specific weather data.

Need Help?

If you're an existing customer and need assistance using or integrating the Pollen Layer, please contact your Tomorrow.io Account Team or email support@tomorrow.io.