Title | Silicone wristbands as personal passive samplers. |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | O'Connell, SG, Kincl, L, Anderson, KA |
Journal | Environ Sci Technol |
Volume | 48 |
Issue | 6 |
Pagination | 3327-35 |
Date Published | 2014 Mar 18 |
ISSN | 1520-5851 |
Keywords | Environmental Monitoring, Environmental Pollutants, Humans, Occupational Exposure, Pesticides, Polycyclic Aromatic Hydrocarbons, Silicones |
Abstract | 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. |
DOI | 10.1021/es405022f |
Alternate Journal | Environ. Sci. Technol. |
PubMed ID | 24548134 |
PubMed Central ID | PMC3962070 |
Grant List | R21 ES020120 / ES / NIEHS NIH HHS / United States P42ES016465 / ES / NIEHS NIH HHS / United States T32ES007060-32 / ES / NIEHS NIH HHS / United States P42 ES016465 / ES / NIEHS NIH HHS / United States T32 ES007060 / ES / NIEHS NIH HHS / United States P30 ES000210 / ES / NIEHS NIH HHS / United States |