Статья

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

Itza Mendoza‐SanchezDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USAInyang UwakDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USALouise G. MyattDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USAAllison Van CleveDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USAJairus C. PulczinskiDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USAKristal A. RychlikDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USAStephen T. SweetGeochemical and Environmental Research Group, Texas A&M University, College Station, TX, USATara RamaniJosias ZietsmanMisti Levy ZamoraDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USAKirsten KoehlerDepartment of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USAGenny CarrilloDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USANatalie M. JohnsonDepartment of Environmental and Occupational Health, Texas A&M University School of Public Health, College Station, TX, USA. [email protected]

2021en

ABI

Аннотация

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

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Идентификаторы

DOI: 10.1038/s41370-021-00348-y

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Цитирований: 2Использованных источников: 0

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