Independent lab testing finds elevated level of chemical of concern in air near East Palestine, Ohio, train derailment https://ift.tt/HCujVGX 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 the chemical acrolein could be having on residents' health.