Bioaccessibility and other key parameters in assessing oral exposure to PAH-contaminated soils and dust: A critical review

Mert Guney, Gérald J. Zagury

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Soil ingestion is an important pathway for human exposure to polycyclic aromatic hydrocarbon (PAH)-contaminated soils and dust for children (via ingesting hand residue) as well as for adults (via occupational exposure). An appropriate selection of exposure parameter values is essential for having an accurate risk assessment. This review addresses key parameters for estimating oral exposure to PAH-contaminated soils/dust, discusses their variability and uncertainty, and provides recommendations for value selection. Bioaccessibility (contaminant fraction solubilized in gastro-intestinal tract, available for entering bloodstream and reaching target organs) and soil ingestion rate are two key parameters for exposure assessment (usually characterized by large variability and/or uncertainty), followed by exposure frequency/duration and body weight.

Original languageEnglish
Pages (from-to)1396-1417
Number of pages22
JournalHuman and Ecological Risk Assessment
Volume22
Issue number6
DOIs
Publication statusPublished - Aug 17 2016

Keywords

  • bioaccessibility
  • exposure assessment
  • PAH
  • risk characterization
  • soil contamination
  • soil ingestion

ASJC Scopus subject areas

  • Ecological Modelling
  • Pollution
  • Health, Toxicology and Mutagenesis

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