Fumes from long-ago industrial activity are still seeping into the homes of some Baltimore-area residents. Those fumes include cancer-causing chemicals like trichloroethylene and perchloroethylene. The site was one of the first Superfund cleanups, but the cleanup was not thorough enough.
Toxic Vapors Seep from Ground, Threaten Baltimore Neighborhood
Source: Baltimore City Paper, 07/23/2009