Modelling the impact of room temperature on concentrations of polychlorinated biphenyls (PCBs) in indoor air

Lyng, Nadja; Clausen, Per Axel; Lundsgaard, Claus; Andersen, Helle Vibeke

doi:10.1016/j.chemosphere.2015.10.112

Cited by 14 publications

(8 citation statements)

References 24 publications

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“…The residence used for the exposure of the fabrics is described in detail by Lyng et al . Experiments were performed in a bedroom in an apartment in one of twelve equal 15‐story apartment buildings erected in 1971‐1974, located in Brøndby, 17 km southwest of central Copenhagen.…”

Section: Methodsmentioning

confidence: 99%

“…An experiment determining air concentrations of the seven PCB congeners temperatures ranging from 20 to 30°C has been performed in the studied bedroom . The measurements were taken as 8‐hour mean values (day or night samples).…”

Section: Methodsmentioning

confidence: 99%

“…Air exchange rates were not measured during these experiments. From earlier measurements, the air exchange rate in the bedroom ranged from 0.2 to 0.4 per hour which may include outdoor air and infiltration from neighboring units.…”

Section: Methodsmentioning

confidence: 99%

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Partitioning of PCBs from air to clothing materials in a Danish apartment

et al. 2017

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Polychlorinated biphenyl (PCB) contamination of buildings continues to pose an exposure threat, even decades after their application in the form of calks and other building materials. In this research, we investigate the ability of clothing to sorb PCBs from contaminated air and thereby influence exposure. The equilibrium concentration of PCB-28 and PCB-52 was quantified for nine used clothing fabrics exposed for 56 days

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Partitioning of PCBs from air to clothing materials in a Danish apartment

et al. 2017

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“…Such processes have been characterized using thermodynamic models. [15][16][17][18] Airborne particles may significantly influence SVOC emission rates from surfaces by transporting SVOC mass out of the boundary layer and/or by providing an airborne condensedphase sink. 19 Chamber studies of organophosphate flame retardants and plasticizers have demonstrated similar partitioning phenomena whereby the presence of airborne particles enhances the rate of SVOC emissions from source materials.…”

Section: Introductionmentioning

confidence: 99%

“…Temperature changes affect equilibrium partitioning between the gas-phase and condensed-phase surface reservoirs, including surface films. Such processes have been characterized using thermodynamic models. − …”

Section: Introductionmentioning

confidence: 99%

Surface Emissions Modulate Indoor SVOC Concentrations through Volatility-Dependent Partitioning

Lunderberg

Kristensen

Tian

et al. 2020

Environ. Sci. Technol.

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Measurements by semivolatile thermal desorption aerosol gas chromatography (SV-TAG) were used to investigate how semivolatile organic compounds (SVOCs) partition among indoor reservoirs in (1) a manufactured test house under controlled conditions (HOMEChem campaign) and (2) a single-family residence when vacant (H2 campaign). Data for phthalate diesters and siloxanes suggest that volatility-dependent partitioning processes modulate airborne SVOC concentrations through interactions with surface-laden condensed-phase reservoirs. Airborne concentrations of SVOCs with vapor pressures in the range of C13 to C23 alkanes correlated with indoor air temperature. Observed temperature dependencies were quantitatively similar to theoretical predictions that assumed a surface-air boundary layer with equilibrium partitioning maintained at the air-surface interface. Airborne concentrations of SVOCs with vapor pressures corresponding to C25 to C31 alkanes correlated with airborne particle mass concentration. For SVOCs with higher vapor pressures, which are expected to be predominantly gaseous, correlations with particle mass concentration were weak or nonexistent. During primary particle emission events, enhanced gas-phase emissions from condensed-phase reservoirs partition to airborne particles, contributing substantially to organic particulate matter. An emission event related to oven-usage was inferred to deposit siloxanes in condensed-phase reservoirs throughout the house, leading to the possibility of reemission during subsequent periods with high particle loading.

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Semi-volatile Organic Compounds (SVOC)

Fromme

2023

Indoor Air Quality

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Modelling the impact of room temperature on concentrations of polychlorinated biphenyls (PCBs) in indoor air

Cited by 14 publications

References 24 publications

Partitioning of PCBs from air to clothing materials in a Danish apartment

Partitioning of PCBs from air to clothing materials in a Danish apartment

Surface Emissions Modulate Indoor SVOC Concentrations through Volatility-Dependent Partitioning

Semi-volatile Organic Compounds (SVOC)

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