Maternal exposure to polycyclic aromatic hydrocarbons in South Texas, evaluation of silicone wristbands as personal passive samplers

• DOI: 10.1038/s41370-021-00348-y
• Publication Date: 2021-06-15T10:04:25Z
• Authors: Itza Mendoza-Sanchez; Inyang Uwak; Louise Myatt; Allison Van Cleve; Jairus C. Pulczinski; Kristal A. Rychlik; Stephen Sweet; Tara Ramani; Josias Zietsman; Misti Levy Zamora; Kirsten Koehler; Genny Carrillo; Natalie M. Johnson
• Keywords: Exposure Assessment

Abstract Background Prenatal exposure to polycyclic aromatic hydrocarbons (PAHs) is associated with adverse health effects in children. Valid assessment methods accurate spatial and temporal resolution across pregnancy a critical need for advancing environmental studies. Objective The objective of this study was quantify maternal PAH pregnant women residing McAllen, Texas where the prematurity rate childhood asthma prevalence rates are high. A secondary compare levels silicone wristbands deployed as passive samplers concentrations measured using standardized active air-sampling techniques. Methods Participants carried backpack that contained equipment (i.e., filter XAD sorbent) wristband sampler) three nonconsecutive 24-h periods. Filters, tubes, were analyzed PAHs. Results median level sum 16 PAHs via sampling over 24 h 5.54 ng/m 3 (filters) 43.82 (XADs). (WB) 586.82 ng/band. Concentrations compounds varied matrix type. Phenanthrene fluorene consistently all participants types. Eight additional volatile XADs WBs; these eight 342.98 (XADs) 632.27 sorbents bound 1-methynaphthalyne, 2-methylnaphthalene, biphenyl following similar patterns detection. Significance Since prior studies indicate linkages between outcomes children at detected our study, further investigation on needed. Data reflect ability bind smaller molecular weight, semivolatile resin. Application may be useful evaluating