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@article{1789143,
author = {Sedlačková, Lenka and Melymuk, Lisa Emily and Vrana, Branislav},
article_location = {OXFORD},
article_number = {September 2021},
doi = {http://dx.doi.org/10.1016/j.chemosphere.2021.130536},
keywords = {Sampler calibration; Inhalation exposure; Persistent organic compounds; Model},
language = {eng},
issn = {0045-6535},
journal = {Chemosphere},
title = {Calibration of silicone for passive sampling of semivolatile organic contaminants in indoor air},
url = {https://www.sciencedirect.com/science/article/pii/S0045653521010079?via%3Dihub},
volume = {279},
year = {2021}
}
TY - JOUR
ID - 1789143
AU - Sedlačková, Lenka - Melymuk, Lisa Emily - Vrana, Branislav
PY - 2021
TI - Calibration of silicone for passive sampling of semivolatile organic contaminants in indoor air
JF - Chemosphere
VL - 279
IS - September 2021
SP - 1-9
EP - 1-9
PB - PERGAMON-ELSEVIER SCIENCE LTD
SN - 00456535
KW - Sampler calibration
KW - Inhalation exposure
KW - Persistent organic compounds
KW - Model
UR - https://www.sciencedirect.com/science/article/pii/S0045653521010079?via%3Dihub
N2 - Semivolatile organic compounds (SVOCs) are mostly man-made chemicals that distribute between the gas and solid phase in the environment. Many of them could pose harm to people and therefore it is important to know their concentrations in the indoor environment to evaluate the related risks. Inhalation exposure can be assessed using passive sampling. In this study, we employed silicone elastomer as a passive sampler for monitoring gaseous polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs) in indoor air. We performed a sampler calibration study in which samplers consisting of 0.5 mm thick silicone sheets with a total surface area of 300 cm(2) were exposed to indoor air in a university lecture theatre for up to 56 days. Uptake kinetics of SVOCs was studied by collecting 2 samplers every week. The results were used to develop a model based on mass transfer theory that can be used to estimate the air sampling rate R-S as a function of compound's molecular volume. We examined release kinetics of performance reference compounds that covered a broad range of silicone-air partition coefficient (log K-SA 5.95-9.49) and investigated a hypothesis of isotropic exchange kinetics, i.e. equality of rate constants for uptake and release, of SVOCs. PCBs and OCPs concentration in air calculated from contaminant amounts accumulated in passive samplers were in good agreement with those determined by active sampling running simultaneously during the entire study. The use of performance reference compounds is suitable for in situ passive sampler calibration.
ER -
SEDLAČKOVÁ, Lenka, Lisa Emily MELYMUK and Branislav VRANA. Calibration of silicone for passive sampling of semivolatile organic contaminants in indoor air. \textit{Chemosphere}. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD, 2021, vol.~279, September 2021, p.~1-9. ISSN~0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2021.130536.
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