Air Quality Procedures for Civilian Airports and Air Force Bases

The heart of the procedures described in this handbook are flow diagrams which identify the extent to which detailed analysis may be required. These flow diagrams identify the interfaces with the numerous agencies involved in the air quality assessment process and what data or methodology could be used. The flow diagrams contain screens or thresholds below which further analysis may not be needed. Where dispersion modeling is required, simplified models and tabular look-up charts are referenced. Section I of the handbook provides general information relating to the basis for environmental assessment and the projects that usually require such analysis. Section II provides step- by-step descriptions and flow diagrams of the air quality assessment process, including steps on state requirements. Section III discusses the various steps involved in preparing an inventory of emission sources and in describing the atmospheric dispersion of these sources. Section IV provides some sample problems, while Section V includes a glossary of terms and an annotated reference list.