First step for an ecological risk assessment to evaluate the impact of diffuse pollution in lake Vela (Portugal).

摘要: Lake Vela, located in the Portuguese littoral-centre, is a temperate shallow lake exhibiting high trophic status. This aquatic ecosystem has been potentially exposed to contamination generated by agricultural and livestock activities held their drainage basin, which seriously compromise health. work summarizes some background information presents problem formulation step of ERA. Therefore, it evaluates characteristics stressor(s), describes ecological system receptors suggests conceptual model, predicts potential exposure pathways, relating suspected sources defined endpoints. introductory also described an analysis plan on entire study, includes delineation assessment design, data needs, measures, methods for conducting phase risk process.