Fate of Diuron and Linuron in a Field Lysimeter Experiment.

Autor: Guzzella, L.1 guzzella@irsa.cnr.it, Capri, E.2, Di Corcia, A.3, Caracciolo, A. Barra4, Giuliano, G.4
Předmět:
Zdroj: Journal of Environmental Quality. Jan/Feb2006, Vol. 35 Issue 1, p312-323. 12p.
Abstrakt: This article focuses on the environmental fate of phenylurea herbicides Diuron and Linuron. The effects of phenylurea herbicides on non-target organisms are currently being studied and a serious matter for environmentalists. It has been found that Diuron is highly toxic for some non-target organisms. The United States Environmental Protection Agency has classified Linuron as possibly carcinogenic in humans. Both, Linuron and Diuron are relatively persistent in soil. When introduced into agricultural soils, several factors may affect the environmental fate of these herbicides. The environmental characteristics including agricultural practices, soil profile and hydrological conditions will determine their vertical and horizontal distribution in the field. It was shown by the analysis of paper filters located on the experimental field together with those of the soil samples that the distribution of Diuron and Linuron was not actually uniform. After this study the researchers concluded that the use of soil enclosure lysimeters is a good experimental design for studying mobility and transport processes of herbicides in field conditions.
Databáze: GreenFILE