exposure pathway


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exposure pathway

[ik′spō·zhər ‚path·wā]
(medicine)
The mode of intake of a substance; for example, inhalation, ingestion, or absorption.
References in periodicals archive ?
Although hygiene factors are a potential exposure pathway modifier, our review identified limited support for relationships between pesticide levels in dust and shoe/clothing removal, laundry practices, and presence of pets.
These alternatives have benefits but could inadvertently cause new waste disposal issues, contamination sources, and exposure pathways.
TABLE 2 Environmental Transport Pathway Evaluation Transport Pathway Rumpke Landfill Air Odors present; low levels of methane and other volatile organic compounds found on site Disease Vectors Insects and birds Surface Water No contaminants found Groundwater Unable to sample - low volume of groundwater available Soil Not applicable TABLE 3 Exposure Pathway Analysis Exposure Pathway Rumpke Landfill Source Landfill solid wastes Transport Pathways Air and disease vectors Exposure Area On site to within one-mile radius of the site Exposure Route Inhalation Impacted Population Workers and residents within a one-mile radius
For DEHP, the primary route of exposure is oral ingestion of dust; inhalation and dermal sorption do not appear to be dominant exposure pathways, which is consistent with observations of Clark et al.
2005) analyzed both marine and freshwater exposure pathways, assuming a linear and instantaneous change in fish Hg levels with declines in atmospheric deposition.
population, for which the relative significance of different exposure pathways for HBCDs appears somewhere between those for penta-BDE (principally diet, but with dust ingestion playing an important role for individuals with high concentrations of dust in their indoor environment) and BDE-209 (for which dust and diet are equally important) (Abdallah et al.
Those who had reported frequent contact with vermiculite through various exposure pathways also demonstrated elevated risk for SAIDs and RA.
Similar analyses were performed for light (mono-tetra) and heavy (penta-deca) PCBs to assess potential differences in exposure pathways as a function of relative volatility.
Hansel has 23 years of experience in remediation of petroleum releases to soil, surface and groundwater, sediment, and fate and transport and exposure pathways.
Each chapter, when possible, contains sections on clinical features of infection, the microbiology of the organism, exposure pathways, and prevention and control.
polyurethane foam), determine the importance of exposure in other microenvironments such as homes and vehicles, and address the inhalation and dermal exposure pathways," the research team concluded.
Critical substances are defined as those "that determine the risk for one or more adverse effects via one or more exposure pathways," such as dermal contact or inhalation.