Results from the railroad’s contractors and independent testers working in East Palestine include more details. The way the Environmental Protection Agency has reported its test results since a Norfolk Southern train derailed and officials released and burned chemicals that spewed a toxic cloud over East Palestine, Ohio, makes it hard for residents to know the full extent of contamination and potential risks to their health.Data analyzed by The Associated Press show the EPA doesn’t provide a specific measurement for chemicals that fall below a reporting limit, making it harder to know how much is there.The EPA has said that residents shouldn’t worry about contamination from chemicals that are below the human health screening level that indicates danger and is usually higher than that reporting limit.