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Toxic Indoor Vapor Risks Spur Patchwork of State Actions

July 17, 2017, 12:25 PM

Growing human health concerns about the toxic vapors of a common pollutant seeping into buildings from contaminated groundwater and soil are prompting stepped-up state reviews but not new regulations.

Environmental firms tasked with measuring the contaminants often face an array of regulations and guidelines across different states related to these screenings but have no federal blueprint to even the playing field.

Trichloroethylene (TCE), an industrial solvent that is also found in some consumer products, is one of the most common groundwater pollutants found at Superfund and brownfields sites, according to the Environmental Protection Agency.

Used as a degreasing agent ...