UFFI insulation was discontinued after a few years because high concentrations of which chemical were found?

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Multiple Choice

UFFI insulation was discontinued after a few years because high concentrations of which chemical were found?

Explanation:
Formaldehyde is the chemical involved. UFFI stands for urea-formaldehyde foam insulation, which can off-gas formaldehyde into indoor air over time. When concentrations became high inside homes, it raised health concerns for occupants, leading to the insulation’s discontinuation in favor of safer materials. As for the other options, asbestos is a different insulation hazard linked to lung disease, lead is primarily a problem in paint and old pipes, and radon is a naturally occurring radioactive gas from the ground—not a gas released by this insulation.

Formaldehyde is the chemical involved. UFFI stands for urea-formaldehyde foam insulation, which can off-gas formaldehyde into indoor air over time. When concentrations became high inside homes, it raised health concerns for occupants, leading to the insulation’s discontinuation in favor of safer materials. As for the other options, asbestos is a different insulation hazard linked to lung disease, lead is primarily a problem in paint and old pipes, and radon is a naturally occurring radioactive gas from the ground—not a gas released by this insulation.

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