TY - JOUR
T1 - Estimation of radionuclide ingestion
T2 - The “pathway” food-chain model
AU - Ward Whicker, F.
AU - Kirchner, Thomas B.
AU - Breshears, David D.
AU - Otis, Mark D.
PY - 1990/11
Y1 - 1990/11
N2 - This paper describes the structure of the dynamic food-chain model PATHWAY and its utility for estimating radionuclide ingestion after fallout deposition from nuclear testing in Nevada. Model input requirements are described and output examples are provided. The basic output of PATHWAY is the time-integrated radionuclide ingestion by humans per unit fallout deposition (Bq per Bq m∼2). Output specific to sex, age, life-style (diet), location (agricultural practice), event (calendar date), and radionuclide may be generated. Uncertainties of model predictions, based on “Monte Carlo” simulations using parameter value distributions, are described. Results of a sensitivity analysis, based on a ranking of partial correlation coefficients, are reviewed to illustrate the relative importance of parameters and associated transport pathways. Output data for 13, I and 137Cs in milk are compared with predictions from several well known food-chain models. Preliminary efforts to validate PATHWAY results with real data sets are described.
AB - This paper describes the structure of the dynamic food-chain model PATHWAY and its utility for estimating radionuclide ingestion after fallout deposition from nuclear testing in Nevada. Model input requirements are described and output examples are provided. The basic output of PATHWAY is the time-integrated radionuclide ingestion by humans per unit fallout deposition (Bq per Bq m∼2). Output specific to sex, age, life-style (diet), location (agricultural practice), event (calendar date), and radionuclide may be generated. Uncertainties of model predictions, based on “Monte Carlo” simulations using parameter value distributions, are described. Results of a sensitivity analysis, based on a ranking of partial correlation coefficients, are reviewed to illustrate the relative importance of parameters and associated transport pathways. Output data for 13, I and 137Cs in milk are compared with predictions from several well known food-chain models. Preliminary efforts to validate PATHWAY results with real data sets are described.
UR - http://www.scopus.com/inward/record.url?scp=0025000384&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025000384&partnerID=8YFLogxK
U2 - 10.1097/00004032-199011000-00015
DO - 10.1097/00004032-199011000-00015
M3 - Article
C2 - 2211122
AN - SCOPUS:0025000384
VL - 59
SP - 645
EP - 657
JO - Health Physics
JF - Health Physics
SN - 0017-9078
IS - 5
ER -