contaminant

“People should be wary of any unregulated treatments, as the purity dosage and presence of contaminants are often unknown,” Bickart said.

The plan did offer to reinspect the home if cleaning was not successful in removing the contaminants.

She said she felt reassured after talking to experts at the event, who explained they are "putting in barriers and things like that" to stop contaminants from getting to the river.

The planetary scientist’s house survived, but unseen contaminants could be lurking in the soil.

Researchers were also making strides under the National Institute of Environmental Health Sciences, a division of Health and Human Services, which has financed investigations into dozens of environmental contaminants.