get.y0.concs: get.y0.concs

In HumanExposure/SHEDSDevel: The SHEDS-HT model for estimating human exposure to chemicals.

Description

Performs fugacity calculations to evaluate constant (time-independent) chemical flows, such as emissions from household articles.

Usage

get.y0.concs(sdata, chem.data, pdmff, cfug)

Arguments

sdata	The chemical-scenario data specific to relevant combinations of chemical and scenario. Generated internally.
chem.data	The list of scenario-specific information for the chemicals being evaluated. Generated internally.
pdmff	Output from the add.fugs function. A data set containing values sampled from the distributions of each relevant variable in the Fugacity input file for each theoretical person.
cfug	The output of the chem_fug function, a data set with the chemical specific parameters for each combination of chemical and simulated person. For each chemical, the chemical specific parameters assigned to a given person are randomly sampled from distributions on those parameters. These distributions are created from point estimates to reflect real-world uncertainty and variability.

Details

This function evaluates the chemical concentrations resulting from constant source emissions. Thus, the function employs the steady state solution to the fugacity equations. The basis for these calculations is that the chemical sources are from articles, and are thus permanent and unchanging. The chemical concentrations will therefore quickly adjust so that the flows are balanced, and the concentrations remain fixed thereafter.

Value

concs A data set containing calculated steady state chemical flows for each unique combination of simulated person and chemical.

Author(s)

Kristin Isaacs, Graham Glen

See Also

chem_fugs, Fugacity, Run, run, get.y0.concs

HumanExposure/SHEDSDevel documentation built on Oct. 30, 2019, 6:49 p.m.