An Integrated Acid Rain Assessment Model for Canada: from Source Emission to Ecological Impact

Integration of data and component models describing acidifying emissions, atmospheric transport, water and soil quality, fisheries, wildlife and socio-economics forms part of a decision-support system development for examining management options for acid rain issues in Canada post-year 2000. The emphasis is on scale consistency, optimization solutions, scenario testing and uncertainty propagation. The integrated model was evaluated with recent data and model consistency cross-checked with optimized and scenario testing results for Eastern Canada. Examples of predicted results on water quality and ecological impact were presented as part of an assessment for the evaluation of control options for acidifying emissions.