DC · Allergy Season Guide
District of Columbia Allergy Season Guide
Summary
District of Columbia has 0 active PollyMap collection sites, and is seeking partners in 1 additional city. Tree pollen typically dominates early spring, grass pollen peaks in late spring and early summer, and weed pollen (including ragweed) extends from late summer through fall.
PollyMap collection status across District of Columbia
Statewide allergy overview
District of Columbia allergy calendar
Month-by-month intensity for the four major airborne allergen categories.
Major city guides in District of Columbia
Latest PollyMap reports for District of Columbia
PollyMap is currently recruiting collection partners in this state. No locally-collected reports have been published yet.
Frequently asked questions
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