Chapters 3, 4 and 5: Transport and Fate of Contaminants National Water Information System: http://nwis.waterdata.usgs.gov/tutorial/index.html Tutorials on how to access the U.S. Geological Survey’s stream flow and water quality data sets. Fluid Mechanics Visualizations (Brown University): http://www.cfm.brown.edu/general/visual.html Dramatic demonstrations of flows under various conditions. Includes graphics and MPEG movies. Lake Michigan Mass Balance Model: http://www.epa.gov/glnpo/lmmb/models.html Introduction to mass balances in a complex ecosystem. Data include PCBs, mercury, the herbicide atrazine, and the insecticide trans-nonachlor (one of the ingredients of chlordane). This model is similar to the chemodynamic models discussed in the book, in that it includes hydrodynamics, sediment (particle) transport, eutrophication/sorbent dynamics, contaminant transport and fate, and food web bioaccumulation CalTox Risk Assessment Model: http://eetd.lbl.gov/ied/ERA/ A spreadsheet model developed by Lawrence Berkeley Laboratory that calculates the emissions of a chemical, the concentration of a chemical in soil, and the risk of an adverse health effect due to a chemical. The model has two components: 1. Multimedia environmental fate model, which evaluates the distribution of a chemical among different environmental compartments (air, surface water, etc.), and 2. Multiple pathway exposure model, which calculates how much of a chemical reaches the body using environmental concentration and contact factors (e.g. breathing rate). Site has latest version of model, plus factors and data that can be loaded. Total Risk Integrated Methodology (TRIM) Model: http://www.epa.gov/ttnatw01/urban/trim/trimpg.html Page has links to the fate and exposure components of the TRIM, an integrated total risk assessment modeling system designed to address all dimensions of a complete residual risk evaluation. Provides a framework (See figure) to assess human health and ecological risks resulting from multimedia contamination (in air, water, soil, and food) and multi- pathway exposures (that is, via inhalation, ingestion, and absorption exposure routes) to pollutants. The movement of pollutant mass is tracked through a comprehensive system of compartments. Environmental Models - Models Knowledge Base: http://cfpub.epa.gov/crem/knowledge_base/knowbase.cfm Site for Models Knowledge Base, an inventory of EPA’s environmental models that contains information about model use (What are the requirements?, How can it be obtained?, and How is it used?) and model science (What is the scientific basis for the model?, How was the model developed?, and was the model evaluated?). Users are encouraged to provide feedback about the Models Knowledge Base and its models. Links to all available models (101 on July 22, 2004) can be found at: http://cfpub.epa.gov/crem/crem_results.cfm?Act TRIM Modular Design (Source: Ted Palma, Amy B. Vasu, and Robert G. Hetes, 1999, “The Total Risk Integrated Methodology (TRIM).” EM, March 1999: http://www.awma.org/em/99/Mar99/features/palma/palma.htm. Description of Models for Multi-Compartmental Risk Assessment (Manaaki Whenua Landcare Research, New Zealand): http://contamsites.landcareresearch.co.nz/description_of_models.htm Site includes descriptions and links to numerous models useful to the movement and fate of contaminants, as well as for geographic information systems and risk calculations. The models are particularly aimed at ecological receptors. Modeling Long Range Transport of Air Pollutants (European Environmental Agency): http://reports.eea.eu.int/92-9167-028-6/en/page002.html Describes ambient air quality, pollutant dispersion and transport models used to estimate and predict transcontinental and transoceanic movement of contaminants. United Nations Economic Commission for Europe’s website for the Convention on Long-range Transboundary Air Pollution: http://www.unece.org/env/lrtap/ Provides links to information on persistence, airborne transport and fate of organic chemicals and heavy metals.