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RECORD NUMBER: 43 OF 230

OLS Field Name OLS Field Data
Main Title Effect, Uptake and Disposition of Nitrobenzene in Several Terrestrial Plants.
Author McFarlane, C. ; Pfleeger, T. ; Fletcher, J. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oklahoma Univ., Norman. Dept. of Botany and Microbiology.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/267;
Stock Number PB91-144808
Additional Subjects Water pollution effects(Plants) ; Nitrobenzenes ; Toxicity ; Pharmacokinetics ; Water intake ; Dose-response relationships ; Plant metabolism ; Photosynthesis ; Species specificity ; Volatilization ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB91-144808 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/13/1991
Collation 10p
Abstract
Eight species of plants were exposed to nitrobenzene in a hydroponic solution. Four species experienced no depression of either transpiration or photosynthetic rates, while one was rapidly killed and the other three were temporarily affected but recovered from the treatment. Uptake of nitrobenzene was passive and was shown to be proportional to the rate of water flux in each species. The transpiration stream concentration factor (TSCF) was 0.72. The root concentration factor (RCF) was variable between the species and was higher than expected, presumably due to deposits of insoluble metabolic products. All of the species examined displayed a capacity to chemically alter nonpolar nitrobenzene into both polar and insoluble products. Volatilization of nitrobenzene from the leaves was a major route of chemical loss.