The amount of fine particulate matter reached levels seen during past Independence Day celebrations but stayed high through Sunday morning, according to EPA data.
Source link : https://www.washingtonpost.com/investigations/2026/07/06/see-how-bad-air-quality-dc-really-got-after-freedom-250-fireworks/
Author : Joyce Lee
Publish date : 2026-07-06 12:15:00
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See how bad the air quality in D.C. really got after the Freedom 250 fireworks
By IntelliNews