Add Yahoo as a preferred source to see more of our stories on Google. Prior to EPA regulations, a Utah resident's hair could contain as much as 100 ppm of lead. While lead contamination is still a ...

[Stay on top of transportation news: Get TTNews in your inbox.] A highly anticipated federal rulemaking that would permit carriers to drug test drivers using hair samples continues to slog its way ...

You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

Before the EPA, Utah saw 100 times more lead exposure. By Andrew Paul Published Feb 2, 2026 3:00 PM EST Get the Popular Science daily newsletter💡 Breakthroughs ...