Silicone Wristbands as Personal Passive Samplers
Autor: | Steven G. O’Connell, Kim A. Anderson, Laurel Kincl |
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Jazyk: | angličtina |
Rok vydání: | 2014 |
Předmět: |
0303 health sciences
Laboratory methods Extramural Extraction (chemistry) General Chemistry 010501 environmental sciences Pesticide 01 natural sciences Article 03 medical and health sciences chemistry.chemical_compound Silicone chemistry Environmental chemistry Environmental Chemistry Environmental science Occupational exposure 030304 developmental biology 0105 earth and related environmental sciences |
Zdroj: | Environmental Science & Technology |
ISSN: | 1520-5851 0013-936X |
Popis: | Active-sampling approaches are commonly used for personal monitoring, but are limited by energy usage and data that may not represent an individual's exposure or bioavailable concentrations. Current passive techniques often involve extensive preparation, or are developed for only a small number of targeted compounds. In this work, we present a novel application for measuring bioavailable exposure with silicone wristbands as personal passive samplers. Laboratory methodology affecting precleaning, infusion, and extraction were developed from commercially available silicone, and chromatographic background interference was reduced after solvent cleanup with good extraction efficiency (>96%). After finalizing laboratory methods, 49 compounds were sequestered during an ambient deployment which encompassed a diverse set of compounds including polycyclic aromatic hydrocarbons (PAHs), consumer products, personal care products, pesticides, phthalates, and other industrial compounds ranging in log K(ow) from -0.07 (caffeine) to 9.49 (tris(2-ethylhexyl) phosphate). In two hot asphalt occupational settings, silicone personal samplers sequestered 25 PAHs during 8- and 40-h exposures, as well as 2 oxygenated-PAHs (benzofluorenone and fluorenone) suggesting temporal sensitivity over a single work day or week (p < 0.05, power =0.85). Additionally, the amount of PAH sequestered differed between worksites (p < 0.05, power = 0.99), suggesting spatial sensitivity using this novel application. |
Databáze: | OpenAIRE |
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