Uptake of terbuthylazine and its medium polar metabolites into maize plants

被引：6

作者：

Gayler, S

Trapp, S

Matthies, M

Schroll, R

Behrendt, H

机构：

[1] UNIV OSNABRUCK,INST ENVIRONM SYST RES,D-49069 OSNABRUCK,GERMANY

[2] GSF FORSCHUNGSZENTRUM UNWELT & GESUNDHEIT GMBH,D-85764 OBERSCHLEISSHEIM,GERMANY

来源：

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 1995年 / 2卷 / 02期

关键词：

D O I：

10.1007/BF02986726

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The uptake of terbuthylazine and its medium polar metabolites into maize plants under outdoor conditions is investigated. For this purpose, a dynamical fate model consisting of soil, plant and air is developed. The model calculations are compared with experimental results of outdoor lysimeter tests, carried out with C-14-labelled herbicide applied to sandy agricultural soil at a single application rate of 890 g/ha. Approximately 0.3% of the applied activity remains in all the plants after the vegetation period. The model predicts that about three times that amount is volatilized from the plants into the air. Activity uptaken from soil and volatilized from plant surface into air is predominately associated with metabolites. During the whole vegetation period the fraction of unchanged terbuthylazine in the plants is very small (less than 1% of the extractable activity).

引用

页码：98 / 103

页数：6

共 11 条

[1]

Burkhard N., Guth J.A., Chemical hydrolysis of 2-chloro-4,6-bis(alkylamino)-1,3,5-triazine herbicides and their breakdown in soil under the influence of adsorption, Pestic. Sci., 12, pp. 45-52, (1981)

[2]

Bowman B.T., Mobility and persistence of the herbicides atrazine, metolachlor and terbuthylazine in plainfield sand determined using field lysimeters, Environ. Toxicol. Chem., 8, pp. 485-491, (1989)

[3]

Schroll R., Langenbach T., Cao G., Dorfler U., Schneider P., Scheunert I., Fate of<sup>14</sup>C-Terbuthylazine in soilplant systems, The Science of the Total Environment, 123-124, pp. 377-389, (1992)

[4]

Trapp S., Model for Uptake of Xenobiotics into plants, Plant Contamination — Modeling and Simulation of Organic Chemical Processes, (1995)

[5]

Karickhoff S.W., Semi-Empirical Estimation of Sorption of Hydrophobie Pollutants on Natural Sediments and Soils, Chemosphere, 11, pp. 833-846, (1981)

[6]

Schwarzenbach R., Westall J., Transport of Nonpolar Organic Compounds from Surface Water to Groundwater: Laboratory Sorption Studies, Environ. Sci. Technol., 15, pp. 1360-1367, (1981)

[7]

Shone M.G.T., Wood A.V., Barlett B.O., Wood A.V., A comparision of the Uptake and Translocation of Some Organic Herbicides and a Systemic Fungicide by Barley, Journal of Experimental Botany, 25, 85, pp. 401-409, (1974)

[8]

Briggs G.G., Bromilow R.H., Evans A.A., Relationships between Lipohilicity and Root Upake and Translocation of Nonionised Chemicals by Barley, Pestic. Sci., 13, pp. 495-504, (1982)

[9]

Briggs G.G., Bromilow R.H., Evans A.A., Willia M., Relationships between Lipophilicity and the Distribution of Nonionised Chemicals in Barley Shoots Following Uptake by the Roots, Pestic. Sci., 14, pp. 492-500, (1983)

[10]

Schonherr J., Riederer M., Desorption of Chemicals from Plant Cuticles: Evidence for Asymmetry, Arch. Environ. Contam. Toxicol., 17, pp. 13-19, (1988)

← 1 2 →