Distribution and Predictors of Urinary Polycyclic Aromatic Hydrocarbon Metabolites in Two Pregnancy Cohort Studies

Details

• Alternative Title:
  Environ Pollut
• Personal Author:
  Cathey, Amber ; Ferguson, Kelly K. ; McElrath, Thomas F. ; Cantonwine, David E. ; Pace, Gerry ; Alshawabkeh, Akram ; Cordero, Jose F. ; Meeker, John D.
• Description:
  Pregnant women and their fetuses represent susceptible populations to environmental contaminants. Exposure to polycyclic aromatic hydrocarbons (PAHs) among pregnant women may contribute to adverse birth outcomes such as preterm birth. Multiple previous studies have assessed airborne sources of PAHs among pregnant women but few have measured urinary PAH metabolites which can capture total exposure through multiple routes. The aim of this study was to bridge this knowledge gap by assessing longitudinal urinary PAH metabolite concentrations over two time points in pregnancy cohorts in Boston (N = 200) and Puerto Rico (N = 50) to better understand exposure distributions throughout pregnancy and how they relate to demographic factors. Urine samples were analyzed for 1-NAP, 2-NAP, 2-FLU, 1-PHE, 2,3-PHE, 4-PHE, 9-PHE, and 1-PYR. Concentrations of 2-NAP, 1-PYR, and 4-PHE were higher in Puerto Rico, while all other metabolites were present in higher concentrations in Boston. In Puerto Rico, intraclass correlation coefficients (ICC) were weak to moderate, ranging from 0.06 to 0.42. PAH metabolite concentrations were significantly higher among younger, heavier (except 1-NAP and 9-PHE), and less educated individuals in Boston only. Consistent significant associations between PAH concentrations and measured covariates were not found in Puerto Rico. Our results suggest that potentially important differences in PAH exposure exist between these two populations. Additionally, our results indicate that multiple urinary measurements are required to accurately assess PAH exposure throughout pregnancy.
• Subjects:
  Adult Aspartic Acid Biomarkers Boston Cohort Studies Environmental Monitoring Environmental Pollutants Female Humans Maternal Exposure Naphthalenesulfonates Polycyclic Aromatic Hydrocarbons Pregnancy Pyrroles

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• Keywords:
  Exposure Assessment Polycyclic Aromatic Hydrocarbons
• Source:
  Environ Pollut. 232:556-562
• Pubmed ID:
  28993025
• Pubmed Central ID:
  PMC5650937
• Document Type:
  Journal Article
• Funding:
  T42 OH008455/OH/NIOSH CDC HHSUnited States/ ; U2C ES026553/ES/NIEHS NIH HHSUnited States/ ; R01 ES018872/ES/NIEHS NIH HHSUnited States/ ; UG3 OD023251/OD/NIH HHSUnited States/ ; ZIA ES103321-01/ImNIH/Intramural NIH HHSUnited States/ ; P30 ES017885/ES/NIEHS NIH HHSUnited States/ ; R836155/EPA/EPAUnited States/ ; T32 ES007062/ES/NIEHS NIH HHSUnited States/ ; P42 ES017198/ES/NIEHS NIH HHSUnited States/ ; P50 ES026049/ES/NIEHS NIH HHSUnited States/
• Volume:
  232
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:64270f16cb1e29f536455c60c9f727d47a6df17c5934879a38d949b96350d246
• Download URL:
  https://stacks.cdc.gov/view/cdc/77048/cdc_77048_DS1.pdf
• File Type:
  [PDF - 346.06 KB ]