Code Purple Air Quality Alert Hits Montgomery County
MCDOTJul 17, 2026
The Metropolitan Washington Council of Governments issued a Code Purple Air Quality Health Advisory for the Washington metro region on July 17, 2026, driven by fine particle pollution from Canadian wildfires. Montgomery County Health Officer Dr. Kisha Davis said the very unhealthy air conditions affect the entire public, not just those with respiratory illnesses. Residents are advised to wear N95/KN95 masks outdoors, use recirculated air in vehicles and homes, and check on isolated elderly neighbors.
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Source: Press Release - Montgomery County, MD, “Montgomery County Officials Issue Health Advisory After Code Purple Air Quality Alert”, received Jul 17, 2026.
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