When Hazardous Vapors Slip Indoors

The movement of vaporous underground contaminants into homes and buildings is attracting increased scrutiny.

Experts, including EPA officials, are not able to estimate the full scale of vapor intrusion, but it is likely extensive. And while exposure to high levels of these vapors can cause immediate effects, breathing small amounts over a period of time is even more concerning — particularly for small children. (Visual by )

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