3 L.A. hikes where you can breathe freely
During the recent fires, many L.A. residents were inundated with information (and misinformation) about air quality. Here's the latest on a few spots where you can hike safely post-fires and not fret ...
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Researchers share detailed air quality data as questions linger over toxic chemicals
Researchers contributing to the ASCENT network of air quality sensors observed spikes in lead and chlorine downwind from the ...