Biocide leaching: a soil capacity model to indicate the hazard of groundwater contamination by biocides

Abstract

The set up of this report is as follows. In Chapter 2 general information of the Atlantic Zone of Costa Rica and some background information on biocide use in Costa Rica is given. The methodology of the Atlantic Zone Program is described and the biocide index as it is determined and used until now. In Chapter 3 materials and methods of this study are described and the Biocide Leach model (B-Leach) is introduced. Chapter 4 describes how the results of the B-Leach model will be used as biocide index including the LD50 value (lethal doses for 50 percent of the population). Chapter 5 shows the results of this study followed by conclusions and recommendations in Chapter 6.