Abstract
ABSTRACT Pesticides used in the agricultural sector could potentially negatively impact the ecosystem, and consequently human and animal health. At the European level, legislation such as European Directive 67/548EEC stipulates that prior to the use of plant protection products, a risk assessment has to be performed. Due to the large number of chemicals used worldwide, it is practically impossible to implement a full quantitative risk assessment for all chemicals. Therefore, chemical ranking systems can be used as an initial screening of pesticides with the view to identifying those requiring further analysis. Nineteen commonly used pesticide ranking tools were evaluated according to: scale of intervention; environmental compartments; human and ecosystem effects; and stage of development and functionality. The tools were assigned a numerical score (maximum of 15) based on their fulfilment of these criteria. This facilitated identification of tools that could be used for a given set of input data and user requirements. The results showed great diversity with total scores between 6 and 13.5. The advantages and disadvantages of each individual model are described. Care needs to be taken in selecting a pesticide ranking tool that fulfills the required criteria in terms of scale, effects, functionality, and environmental compartments analyzed.
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