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• Ringelmann Smoke Chart (pdf) - Bureau of Mines (1967) publication of the Ringelmann Smoke Chart.
• History of the Beaufort Wind Scale (pdf) - by the National Weather Service.
• Technical Discussion of the Unified Emission Factors for Open Molding of Composites (pdf) - discussion and analysis of the Composites Fabricators Association (CFA) styrene emissions testing.
• Draft Guide to the Estimation and Permitting of Particulate Emissions from the Manufacture of Reinforced Plastic Composites (pdf) - guide published by the Composites Fabricators Association (CFA).
• Emission Factors for Liquid Organic Peroxide Catalysts used in the Open Molding of Composites (pdf) - uses mass balancing and best engineering judgment.
• Opacity of Combined Gas Streams (pdf) - EPA Technical Information Document.
• A Conceptual Model to Adjust Fugitive Dust Emissions to Account for Near Source Particle Removal in Grid Model Applications (pdf) - EPA document discussing the agency's efforts in developing a factor to "adjust" fugitive dust emission modeling results to obtain better agreement with ambient monitoring data.
• The Hidden Hazards of Backyard Burning (pdf) - EPA brochure.
• Modeling Adjustment Factor for Fugitive Emissions (pdf) - TNRCC staff memo.
• Modeling Fugitive Emissions as Pseudo-Point Sources (pdf) - TNRCC staff memo.
• TNRCC Air Quality Modeling Guidelines (pdf).
• Vermont Used Oil Analysis and Waste Oil Furnace Emissions Study (pdf).