Air Impact Analyses Once permitting strategies are developed, AEC can identify and perform any air impact analyses which may be necessary to demonstrate compliance with applicable requirements. AEC's experience, coupled with the latest computer hardware and software capabilities, allows AEC to perform these analyses in a timely and cost-effective manner. Experience AEC's experience conducting air impact analyses includes the full range of possible investigations from complex Prevention of Significant Deterioration (PSD) air impact analyses to simple screen modeling. Such analyses include: Screen Modeling NAAQS Protection Demonstrations PSD Increment Analyses Alternate Fuel Production Air Toxic Guideline Assessments Visibility Assessments Soil, Vegetation and Growth Impact Assessments AEC's modeling staff approaches each new project with the knowledge that every air impact analysis is unique and often requires innovative approaches to ensure that the predicted impacts are not overly conservative. AEC coordinates with the client and regulatory agencies to develop detailed modeling protocols for each project and, if necessary, AEC can make field measurements of meteorological and emissions parameters to ensure realistic model input variables. AEC has conducted air impact analyses of emissions from a variety of industrial and manufacturing processes including: Lime Production Open Pit Copper Mining Portland Cement Production Power Generation Smelter Complexes Steel Production