title: Ingestion pathway model developed for use with an acute atmospheric dose model at the Savannah River Site.
abstract: AXAIRQ is a straight-line Gaussian plume dose model used for prospective accident assessment at the Savannah River Site and currently includes the following dose pathways: inhalation, ground shine, and plume shine. In the event of an accident, another possible pathway for dose would be through ingestion of locally produced contaminated foodstuffs. A model, AXINGST, has been developed that would incorporate this pathway. Currently available ingestion models were referenced as a basis for AXINGST. The model calculates an ingestion dose following an atmospheric release of radionuclides and includes site-specific variables where applicable. AXINGST estimates tritium vegetation concentrations that are within a factor of 20-40 of measured data during previous accidental releases at SRS.
authors.affiliation: Westinghouse Savannah River Company, Aiken, SC 29808, USA. Ali.simpkins@srs.gov
authors.forename: A A
authors.initials: AA
authors.lastname: Simpkins
authors.forename: D R
authors.initials: DR
authors.lastname: Marx
authors.forename: D M
authors.initials: DM
authors.lastname: Hamby
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis / Q000493:pharmacokinetics*; D000818:Animals; D005507:Food Contamination, Radioactive / Q000032:analysis; D006801:Humans; D008460:Meat / Q000032:analysis; D008892:Milk / Q000737:chemistry; D008954:Models, Biological; D011829:Radiation Dosage; D018788:Radioactive Hazard Release; D013022:South Carolina; D014316:Tritium / Q000032:analysis / Q000493:pharmacokinetics; D014675:Vegetables / Q000737:chemistry
chemical_list: D000396:Air Pollutants, Radioactive; D014316:Tritium