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Delaware DNREC on X: "🟪 Delaware is experiencing high levels of particulate pollution on Friday July 17."

@DelawareDNREC
Delaware DNREC
@DelawareDNREC
🟪 Delaware is experiencing high levels of particulate pollution on Friday July 17.
Air quality forecast map of the Mid-Atlantic and Northeast showing Delaware and much of Pennsylvania, Maryland and Washington, D.C., in purple, indicating very unhealthy air quality. Surrounding areas appear red, orange and yellow.
12:57 PM · Jul 17, 2026
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