VOCs emission from concrete?

[Guest guest]

As well-known, the energy use for building service contributes a significant

portion to the toal energy use. One of recent approaches is to utilize

building mass (or fistures) to reduce heating/cooloing load or shift the

peak load toward off-peak time. For this, ventilation air is supplied and

contacted by building fixtures (e.g. concrete slab) for pre-cooling/heating

the supplied air. My question is whether these solid concrete slabs are

generating volatile organic compounds (VOCs) or not. This is an issue as

this pre-warmed/cooled air is supplied into occupied zones sometimes and the

VOCs are complicate indoor air pollutants. So if you have any related

experience or resources related to this, I'd like to ask you to share them

with me. It'll be very useful and appreciated. Thanks, Heekwan