"It's Worrisome to Not Have Data." An Expert Questions Whether Air Is Safe After Train Derailment.

The article discusses ongoing concerns about air safety in East Palestine, Ohio, following a train derailment that released toxic chemicals, including vinyl chloride. Although the U.S. Environmental Protection Agency (EPA) has cleared residents to return home, questions remain regarding the adequacy of air testing methods used to assess safety. Peter DeCarlo, an atmospheric chemist at Johns Hopkins University, critiques the reliance on handheld monitors for ambient air quality, suggesting that more precise laboratory sampling is necessary to accurately identify harmful pollutants. He emphasizes the need for better investment in environmental agencies to ensure effective responses to such incidents and highlights the potential long-term risks posed by lingering contaminants in the environment. [Extracted from the article]