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Which of the following is NOT a building material that emits formaldehyde?

APlywood

BGlue

CPaints

DConcrete

Answer:

D. Concrete

Read Explanation:

  • Formaldehyde is a colourless gas with a pungent smell. It is one of the most common volatile organic compounds (VOCs) found indoors.

  • Formaldehyde is emitted from building materials (e.g. particleboard, plywood, glue, paints) as well as household and personal care products (e.g. drapes, carpets, cleaning products, hair sprays).

  • Additional indoor sources may be combustion processes such as smoking, heating, cooking, or candle or incense burning.

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