What does the concept of emissions from materials in 62.1 imply?

• A. Materials can emit VOCs; IAQP may require sources to minimize emissions.
• B. Materials do not affect IAQ according to 62.1.
• C. Emissions are only relevant to outdoor pollution.
• D. IAQ is influenced only by ventilation rates, not materials.

Answer: (A)

Emissions from materials contribute to indoor air contaminants, so they can affect IAQ. In ASHRAE 62.1, the Indoor Air Quality Procedure (IAQP) recognizes that building materials and other sources can emit VOCs and other pollutants, and it may require reducing those emissions at the source to meet IAQ targets. This means materials can influence indoor air quality, and IAQP might mandate choosing low-emitting sources or other emission-minimizing measures, in addition to providing adequate ventilation. The other statements ignore the impact of materials on IAQ or limit IAQ relevance to outdoor pollution or ventilation rates only, which isn’t consistent with 62.1.