Building materials (BMs) are major contributors to indoor emission sources of volatile organic compounds
(VOCs). In this study, 8 kinds of BMs (including conventional and green) for ceiling, cabinetry,
and flooring commonly used indoors were tested in a 216 L chamber. Primary emissions of carbonyls (C1
to C8 aldehydes and ketones) at 48 h were 75e673 mg m2 h1 from conventional BMs, and 62
e151 mg m2 h1 from green BMs. Primary emissions of BTEX at 48 h were 59e264 mg m2 h1 from
conventional BMs, and 37e56 mg m2 h1 from green BMs. Ozone initiated molar yields of carbonyls
were 0.10e2.36 from conventional BMs, and 0.13e0.86 from green BMs. Secondary emissions of carbonyls
were 7e150 mg m2 h1 from conventional BMs, and 4e73 mg m2 h1 from green BMs. Green
BMs had lower emissions than conventional analogs, especially for wooden flooring and gypsum board.
BMs with mineral content are the most promising materials in this study, given moderately high ozone
deposition velocity but generating the least byproducts. Secondary emissions determined in this study
demonstrate that moderate indoor ozone concentrations may lead to increased concentrations of carbonyls,
especially formaldehyde and acetaldehyde that potentially increase adverse chronic health
effects.
Building materials (BMs) are major contributors to indoor emission sources of volatile organic compounds(VOCs). In this study, 8 kinds of BMs (including conventional and green) for ceiling, cabinetry,and flooring commonly used indoors were tested in a 216 L chamber. Primary emissions of carbonyls (C1to C8 aldehydes and ketones) at 48 h were 75e673 mg m2 h1 from conventional BMs, and 62e151 mg m2 h1 from green BMs. Primary emissions of BTEX at 48 h were 59e264 mg m2 h1 fromconventional BMs, and 37e56 mg m2 h1 from green BMs. Ozone initiated molar yields of carbonylswere 0.10e2.36 from conventional BMs, and 0.13e0.86 from green BMs. Secondary emissions of carbonylswere 7e150 mg m2 h1 from conventional BMs, and 4e73 mg m2 h1 from green BMs. GreenBMs had lower emissions than conventional analogs, especially for wooden flooring and gypsum board.BMs with mineral content are the most promising materials in this study, given moderately high ozonedeposition velocity but generating the least byproducts. Secondary emissions determined in this studydemonstrate that moderate indoor ozone concentrations may lead to increased concentrations of carbonyls,especially formaldehyde and acetaldehyde that potentially increase adverse chronic healtheffects.
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