Question

The effect on indoor air quality of off-gassing from new synthetic building materials is a concern because of the release of

A) carbon dioxide
B) NOX gases
C) water vapour
D) volatile organic compounds

Answer 1

The release of volatile organic compounds (VOCs) from synthetic building materials is a main indoor air quality concern due to their negative health effects and higher indoor concentrations.OPTION D.

Step-by-step explanation:

The effect on indoor air quality of off-gassing from new synthetic building materials is a concern predominantly because of the release of volatile organic compounds (VOCs). These compounds, found in products like paints, varnishes, and cleaning agents, can emanate from materials both during use and while stored. The "new car smell," for instance, is due to such off-gassing of VOCs.

It is important to recognize that VOCs are consistently present in higher concentrations indoors than outdoors and are often associated with sick building syndrome. Consequently, VOCs can lead to negative long-term health effects such as headache, dizziness, visual disorders, and memory impairment. Proper ventilation and careful selection of building materials can reduce exposure to these harmful compounds.