Environmental

Formaldehyde is a potential indoor air quality concern in Louisiana homes primarily because it off-gasses from:

AOld plumbing pipes
BPressed wood products, adhesives, and certain insulation materials used in construction✓ Correct
CExterior brick and mortar
DHVAC refrigerants

Explanation

Formaldehyde off-gasses from pressed wood products (particle board, plywood, MDF), adhesives, and certain insulation materials (UFFI). It is a known indoor air pollutant and potential carcinogen, particularly in newer homes or those with extensive pressed wood products.

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