Environmental assessment data systems

Source characterization results are not located in a centralized facility which is constantly updated. The Environmental Protection Agency has established the Environmental Assessment Data System (EADS) (31) which contains chemical compositions of particulate matter emissions tests. This existing computerized structure can provide the centralized location for receptor model source characterization information. Procedures such as those described for ambient data in the previous section need to be developed in order to allow receptor model users access to this data base over telephone lines. The data required of receptor model source tests should be incorporated into the EADS, and source characterization results should report this information in an EADS compatible format. 

Larkin, R. and Johnson, G. L. (1979). Environmental Assessment Data System User Guide - Draft. EPA/IERL 68-02-2699, Research Triangle Park, North Carolina. 

Risk assessment (i.e., calculation of risk) is a complex, multi-step process, and the results usually have a significant degree of uncertainty because of limitations in data and in the models of environmental and biological systems. In addition, for purposes of generally classifying waste, risk assessment must be generic i.e., it is not intended to apply to disposition of a specific waste in a specific manner at a specific site. 

J.D. Allison, D.S. Brown and K.J. Novo-Gradac, MINTEQA2, A Geochemical Assessment Data Base and Test Cases for Environmental Systems Version 3.0 User s Manual, Report EPA/600/3-91/-21, US EPA, Athens, GA, 1991. 

Allison, J. D., D. S. Brown, and K. J. Novo-Gradac. 1991. MINTEQA2, A geochemical assessment data base and test cases for environmental systems Ver.s. 3.0 user s manual. Report EPA/600/3-91/-21. Athens, GA U.S. EPA. 

EPA. 1988a. Integrated Risk Information System (IRIS). Risk Estimate for carcinogenicity for N-Nitrosodimethylamine. Online. (Verification data 03/01/88.) Office of Health and Environmental Assessment, Environmental Criteria and Assessment Office, Cincinnati, OH. 

The MEPAS shell has elements of a knowledge-based system. The source term, environmental. transport, and exposure assessment data entries build a database of information that can be used to define additional environmental problems. This feature, which was added to simplify evaluation of similar or related problems, will also be useful in the evaluation of remedial action alternatives for site cleanup using a baseline case. Also the knowledge base in the constituent database grows as MEPAS is applied to new constituents. 

EC-JRC (2011) Recommendations based on existing environmental impact assessment models and factors for life cycle assessment in European context. ILCD handbook - international reference life cycle data system, European Union EUR24571EN. Retrieved from http // Ict.jrc.ec.europa.eu (accessed 20 August 2013)... 

Steen B. A systematic approach to environmental priority strategies in product development (EPS). Version 2000—models and data of the default method. CML — Centre for Environmental Assessment of Products and Material Systems 1999. 

It is the auditor s job to assess the effectiveness of the environmental compliance and the management control that is in place at the semiconductor facility. Auditing will be principally conducted through the review of documents, files, test data, and interview of key personnel, and by visual observations. The data relating to on-site environmental controls will be compared with information from environmentally compliant/acceptable systems. 

Additionally, the integration of geographic information system (GIS) with analytical data is an effective procedure in addressing the problem of spatial and temporal variability of the different parameters involved in the environmental fate of chemicals. Based on accurate local estimations, GIS-based models would then also allow deriving realistic and representative spatially averaged regional PECs. Table 4 shows some studies that have used GIS-based methodologies to perform a site-specific risk assessment of PECs in different exposed ecosystems. 

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