The aim of the presented work is to develop a model for distribution of pesticides into the environment following application to the field. Based on input of required substance characteristics and applied quantities for the pesticides, the model will estimate the emissions to the air, water, soil and groundwater compartments for use in life cycle inventory analysis of agricultural product systems.
The model is called PESTLCI and it builds on an already existing model by Hauschild, 2000 /2/ to which a number of amendments are introduced inspired by existing work on hazard and risk characterisation and assessment of pesticide applications.
The report therefore starts with a review of the work reported by the CAPER project as described in / / in order to locate new methods amenable for:
1. Handling of pesticide screening in LCA
2. Distribution modelling of pesticides in LCA
3. Evaluation of human exposure in LCA
Following the review of existing methods, a number of modifications and new modules are developed and integrated into the existing method for pesticide distribution modelling to arrive at PESTLCI.
Finally, PESTLCI is tested on three pesticide applications and the results compared to the results obtained with the old model.
PESTLCI is available as a Excel© spreadsheet (Danish Xp version) model.