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Title: Kinetics of the uptake of sup 14 C-labeled chlorinated benzenes from soil by plants

Abstract

({sup 14}C)Benzene, ({sup 14}C)1,2,4-trichlorobenzene, ({sup 14}C)pentachlorobenzene, and ({sup 14}C)hexachlorobenzene were applied to soils in outdoor lysimeters to a 10-cm depth (2 mg/kg dry soil); barley and cress plants were grown for one vegetation period and analyzed after varying time intervals. The bioaccumulation factors (concentration of radioactive substances in plants divided by that in soils) of barley were higher than those of cress, except for hexachlorobenzene. In barley, bioaccumulation factors increased with decreasing chlorine content of the molecules, except for benzene, whereas in cress hexachlorobenzene exhibited the highest bioaccumulation factor. The conversion ratios of chlorinated benzenes (percentage of conversion products based on total radioactivity in plants) were negatively correlated to the chlorine content of the molecules and, in barley, positively correlated with time; in general, they were higher in barley than in cress. The concentration of radioactive substances in the plants, as well as bioaccumulation factors, decreased with time, except for a slight increase in benzene-derived residues in barley after 125 days. This effect is due to growth dilution. The percentage of radioactivity in barley seeds, based on that in the whole plant, was negatively correlated to the chlorine content of the molecule.

Authors:
; ;  [1]
  1. Institut fuer Okologische Chemie, Neuherberg (Germany, F.R.)
Publication Date:
OSTI Identifier:
5512198
Resource Type:
Journal Article
Journal Name:
Ecotoxicology and Environmental Safety; (USA)
Additional Journal Information:
Journal Volume: 17:2; Journal ID: ISSN 0147-6513
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 59 BASIC BIOLOGICAL SCIENCES; CHLORINATED AROMATIC HYDROCARBONS; BIOLOGICAL ACCUMULATION; BARLEY; BENZENE; CARBON 14 COMPOUNDS; LAND POLLUTION; PLANT GROWTH; PLANTS; ROOT ABSORPTION; SOILS; TRACER TECHNIQUES; ABSORPTION; AROMATICS; CEREALS; GRAMINEAE; GROWTH; HALOGENATED AROMATIC HYDROCARBONS; HYDROCARBONS; ISOTOPE APPLICATIONS; LABELLED COMPOUNDS; LILIOPSIDA; MAGNOLIOPHYTA; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; POLLUTION; UPTAKE; 560300* - Chemicals Metabolism & Toxicology; 550501 - Metabolism- Tracer Techniques

Citation Formats

Topp, E, Scheunert, I, and Korte, F. Kinetics of the uptake of sup 14 C-labeled chlorinated benzenes from soil by plants. United States: N. p., 1989. Web. doi:10.1016/0147-6513(89)90034-1.
Topp, E, Scheunert, I, & Korte, F. Kinetics of the uptake of sup 14 C-labeled chlorinated benzenes from soil by plants. United States. https://doi.org/10.1016/0147-6513(89)90034-1
Topp, E, Scheunert, I, and Korte, F. 1989. "Kinetics of the uptake of sup 14 C-labeled chlorinated benzenes from soil by plants". United States. https://doi.org/10.1016/0147-6513(89)90034-1.
@article{osti_5512198,
title = {Kinetics of the uptake of sup 14 C-labeled chlorinated benzenes from soil by plants},
author = {Topp, E and Scheunert, I and Korte, F},
abstractNote = {({sup 14}C)Benzene, ({sup 14}C)1,2,4-trichlorobenzene, ({sup 14}C)pentachlorobenzene, and ({sup 14}C)hexachlorobenzene were applied to soils in outdoor lysimeters to a 10-cm depth (2 mg/kg dry soil); barley and cress plants were grown for one vegetation period and analyzed after varying time intervals. The bioaccumulation factors (concentration of radioactive substances in plants divided by that in soils) of barley were higher than those of cress, except for hexachlorobenzene. In barley, bioaccumulation factors increased with decreasing chlorine content of the molecules, except for benzene, whereas in cress hexachlorobenzene exhibited the highest bioaccumulation factor. The conversion ratios of chlorinated benzenes (percentage of conversion products based on total radioactivity in plants) were negatively correlated to the chlorine content of the molecules and, in barley, positively correlated with time; in general, they were higher in barley than in cress. The concentration of radioactive substances in the plants, as well as bioaccumulation factors, decreased with time, except for a slight increase in benzene-derived residues in barley after 125 days. This effect is due to growth dilution. The percentage of radioactivity in barley seeds, based on that in the whole plant, was negatively correlated to the chlorine content of the molecule.},
doi = {10.1016/0147-6513(89)90034-1},
url = {https://www.osti.gov/biblio/5512198}, journal = {Ecotoxicology and Environmental Safety; (USA)},
issn = {0147-6513},
number = ,
volume = 17:2,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 1989},
month = {Sat Apr 01 00:00:00 EST 1989}
}