pollen count 
noun
An index of the amount of pollen in the air, published chiefly for the benefit of those allergic to it.This means the dose can be tailored to the pollen count and the allergic response....
- What can the pollen count tell an allergy sufferer, and what do the numbers mean?
- During ragweed season, Kleinschmidt tracks the daily pollen count when her medication doesn't seem to be working.
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