Record Display for the EPA National Library Catalog


Main Title Mathematical Model of Plant Uptake and Translocation of Organic Chemicals: Development of the Model.
Author Lindstrom, F. T. ; Boersma, L. ; McFarlane, C. ;
CORP Author Oregon State Univ., Corvallis. Dept. of Soil Science.;Corvallis Environmental Research Lab., OR.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-92/346;
Stock Number PB93-106938
Additional Subjects Mathematical models ; Plants(Botany) ; Organic compounds ; Roots ; Soil chemistry ; Xenobiotics ; Transpiration ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB93-106938 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
Uptake, transport, and accumulation of organic chemicals by plants are influenced by characteristics of the plant and properties of the chemical, soil, and environmental conditions. A mathematical model was formulated which, when adequately tested, can be used to provide information about potential contamination. The model consists of one root compartment, one stem compartment, and three leaf compartments - each compartment subdivided into xylem, phloem, and storage. Chemical uptake is modeled from the soil solution to the root surface, through the apparent free space, endodermis into the xylem and throughout the plant. This article shows formulations of the mass balance equations, which lead to the complete system of equations that describe uptake. The solution gives chemical mass in each compartment as a function of time. The mathematical development yielded a well-defined concept of uptake, in-plant transport, and local accumulation of organic chemicals by plants.