Written by Stephen Henshaw, P.G., President & CEO, EnviroForensics
As seen in the October 2013 issue of Cleaner and Launderer
Over the years, environmental regulations have gotten more and more restrictive. The permissible levels of chlorinated solvents in groundwater, soil and indoor air continue to be pushed lower. While the acceptable level of PCE in indoor air was actually increased by the federal government, the acceptable level of TCE (a breakdown product of PCE) was drastically lowered, which has resulted in an increase of Sites posing a public health risk. It is the vapors, which contain volatile organic compounds from releases of cleaning solvents or gasoline, which is posing the greatest risk to people living or working near the Sites where the contaminants were released. The regulatory requirement to evaluate the fate and distribution of these contaminated vapors into homes, apartments, schools, and businesses is raising the publics concern and could create the perception of risk and with those perceptions associated concerns and fears of health effects.