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Pollen count
01
the number of pollen grains (usually ragweed) in a standard volume of air over a twenty-four hour period and a specified time and place
Example
His seasonal allergies flare up every spring when the pollen count rises.
Seasonal allergies tend to recur each spring when the pollen count rises.
Those with pollen allergies may react during the spring months when the pollen count is high.
Her allergies flared up in the spring when the pollen count was high.
