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Air Quality

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Large Railroad-Tie Fire Sends Thick Black Smoke Over Midtown Pueblo

The Pueblo Fire Department urged people downwind to protect their air as crews worked to contain the blaze and assess its impact.

Ozone Alerts Issued Across Texas as Stagnant Heat Degrades Air Quality

Peer-Reviewed Study Ties Tijuana River to Toxic Air in San Diego’s South Bay

Study Finds Lasting Respiratory Health Gains After Shenango Coal Plant Closure