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Title

Polydimethylsiloxane (silicone rubber) brooch as a personal passive air sampler for semi-volatile organic compounds

AuthorsOkeme, Joseph O. ; Nguyen, Linh; Lorenzo, María; Dhal, Suman; Picó, Yolanda; Arrandale, Victoria H.; Diamond, Miriam L.
KeywordsPDMS brooch
Silicone rubber brooch
Passive air sampler
Indoor
Phthalates
Issue DateOct-2018
PublisherElsevier
CitationChemosphere 208: 1002-1007(2008)
AbstractExposure assessments conducted using a personal sampler include the contribution of human activities to exposure that is neglected when using a stationary air sampler. This study evaluated the uptake characteristics and application of the polydimethylsiloxane (PDMS or silicone rubber) brooch as a personal passive air sampler (PPAS) for measuring concentrations of two groups of semi-volatile organic compounds (SVOCs), namely phthalates and organophosphate esters (OPEs), indoors in proximity to the breathing zone. Uptake rates of the PDMS brooch were calibrated against a personal low volume active air sampler (PLV-AAS) co-deployed on each of five study participants working in offices for 8 hs daily for four days. Sampling rates measured here ranged from 0.41 ± 0.33 to 1.33 ± 0.34 m3 day−1 dm−2 with an average value of 0.86 ± 0.29 m3 day−1 dm−2. Personal air concentrations of 1211 to 2640 ng m−3 for ∑5 phthalates and 254 to 663 ng m−3 for ∑5 OPEs were measured for three study participants who used the PDMS brooches continuously for seven days. These concentrations resulted in estimated inhalation exposures of 19,400 to 42,400 ng day−1 for ∑5 phthalates and 4,070 to 10,600 ng day−1 for ∑5 OPEs. This study demonstrated that the PDMS brooch can be used to assess inhalation exposure when worn for at least 24 h indoors, for compounds present in >4 ng m−3 in air such as individual phthalates and OPEs tested here.
Publisher version (URL)http://dx.doi.org/10.1016/j.chemosphere.2018.05.196
URIhttp://hdl.handle.net/10261/182566
DOI10.1016/j.chemosphere.2018.05.196
ISSN0045-6535
E-ISSN1879-1298
Appears in Collections:(CIDE) Artículos
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