A mobile lab monitoring for air pollution at the site of the Norfolk Southern train derailment in East Palestine, Ohio, found one potential chemical of concern at higher levels than normal, a team of scientists from Carnegie Mellon University and Texas A&M said at a briefing on Friday. Researchers said it's not yet clear what impact that could be having on residents' health.

Independent lab testing finds elevated level of chemical of concern in air near East Palestine, Ohio, train derailment | CNN

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