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pollution indexes

Coverage of pollution indexes in the Nexus archive.

Earliest in view: Jul 17 · 00:11 UTCMost recent: Jul 17 · 00:11 UTC

Co-mentioned in this coverage

Recent coverage

HEALTHJul 17 · 00:11 UTCNYT US
Wildfire Smokes Makes Air Hazardous for Millions in Midwest and East Coast
Wildfire smoke has made air hazardous for millions in the Midwest and East Coast. The haze is expected to ease in the East this weekend but persist in the Upper Midwest, where cities recorded extremely high pollution indexes on Thursday.