Environmental

Formaldehyde in Arizona homes is primarily a concern because it can outgas from:

AExterior paint only
BPressed wood products, adhesives, and some insulation materials, causing indoor air quality issues✓ Correct
CCopper plumbing
DConcrete foundations

Explanation

Formaldehyde is found in pressed wood products (particleboard, plywood, MDF), adhesives, and some insulation. It can outgas into indoor air, causing eye, nose, and throat irritation and, at high levels, is a known carcinogen.

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