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'It's not safe': As L.A.-area fires continue to smolder, experts warn of hidden dangers in the air
When the firestorms started in Los Angeles County, health officials encouraged the public to take note of the air quality reports before heading outdoors. Now, more than a week later, the expert ...
Air in Dallas and Tarrant counties exceeds federal soot standards
The air in 12 Texas counties exceeded federal soot standards, but Texas regulators say only four should face consequences.