Rising Pollen Counts Impacting Major U.S. Cities This Spring
Rising Pollen Counts Impacting Major U.S. Cities This Spring
US · Published Apr 23, 2026
Pollen levels are rising across major U.S. cities, affecting over 80 million Americans with seasonal allergies.
Tree pollen peaks in mid-April in central states and mid-May in northern states; grass pollen affects southern states in May, moving north in June and July.
Strategies to mitigate pollen impact include monitoring forecasts, keeping windows closed, using air purifiers, and taking allergy medications.
High pollen counts trigger allergy symptoms
This spring, many major cities in the United States are experiencing a significant increase in pollen counts, leading to heightened seasonal allergy symptoms for millions of Americans. Over 80 million individuals are affected, reporting symptoms such as sneezing, nasal congestion, and watery eyes due to tree, grass, and weed pollen.
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