Infectious risk activity has been decreasing over the past 12 weeks in Prince William, Virginia.
Allergy risk activity has been increasing over the past 12 weeks in Prince William, Virginia.
No Pollution activity has been reported over the past 12 weeks in Prince William, Virginia.
Weather risk activity has been increasing over the past 12 weeks in Prince William, Virginia.
Last updated: May 25, 2026
Data refreshed weekly
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