Untersuchungen zur Aufnahme von Methyl-tert.-butyl­ether durch Blätter und Wurzeln von Spinat- und Radieschenpflanzen

Abstract

Petrol industry produced large quantities of waste water every year and it has 5 ... 80 mg of methyl-tert.-butylether per litre, a substance which is synthesized as additive for petrol. Therefore, the effect of this water from the petrol industry was used for watering spinach and red radish to see the incorporation of MTBE in these crops. In greenhouse model experiment, Mitscherlich pots were filled with quartzsand containing required nutrient solution and were watered with three concentrations of MTBE in water, i. e., 1, 100 and 500 mg/l. Two methods were followed: water containing MTBE was sprayed in one experiment and in another it was dropped on the surface of the substrate. Our results indicate, that incorpora­tion of MTBE in spinach plants was less than 0.1 ppm in all the treatments, whereas results were quite different with red radish. Spraying the leafs with 100 and 500 mg/l of MTBE water resulted in 4 and 25 ppm of MTBE incorporation whereas in surface drop, the residues were 4 and 29.5 ppm of MTBE respectively.