Pollen OutlookOttawa, ONUpdated on Saturday, May 2nd
Very High
Top Allergens
- Ash
- Birch
- Boxelder, Maple
Data provided by Aerobiology Research
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3 Day Pollen Forecast
Legend
Very High: >200 grains/m³
The pollen forecast is based on actual number of particles per cubic metre of air.
Forecasts Provided by Aerobiology Research Laboratories under license
