Record Display for the EPA National Library Catalog
RECORD NUMBER: 198 OF 200
|OLS Field Name||OLS Field Data|
|Main Title||Vapor-Phase 2,3,7,8-TCDD Sorption to Plant Foliage: A Species Comparison.|
|Author||McCrady., J. K. ;|
|CORP Author||Corvallis Environmental Research Lab., OR.|
|Additional Subjects||Plants(Botany) ; Dioxin ; Vapor phases ; Exposure ; Air pollution ; Sorption ; Herbicides ; Grasses ; Vegetables ; Fruits ; Plant tissues ; Constants ; Reaction kinetics ; Mathematical models ; Reprint ; Dioxin/Tetrachloro dibenzo ; Plant uptake|
Plant uptake rate constants (k sub 1) were determined for vapor-phase 2,3,7,8-TCDD using grass, azalea, spruce, kale and pepper foliage, and the fruit from apple, tomato and pepper. Plants were exposed to vapor-phase (supra 3H-)2,3,7,8-TCDD for 96 h, and the TCDD sorption rate constant for each plant species was determined from measured air and plant concentration. Sorption rate constants for the different plant tissues, expressed on a fresh weight basis, varied by two orders of magnitude. The cuticular wax content of the different plant species did not effect the short-term sorption kinetics of 2,3,7,8-TCDD.