Area Sources of Urban Air Toxics
Area sources are smaller stationary sources of air pollution that emit less than 10 tons per year of a single air toxic, or less than 25 tons per year of a combination of air toxics. Through the Integrated Urban Air Toxics Strategy, and multiple separate listings, the EPA identified 68 area source categories that represent 90 percent of the combined emissions of the 30 urban air toxics.
| List of 68 Area Sources of Urban Air Toxics | |
|---|---|
| Acrylic Fibers/Modacrylic Fibers Production | Iron and Steel Forging |
| Agricultural Chemicals and Pesticides Manufacturing | Iron Foundries |
| Aluminum Foundries | Lead Acid Battery Manufacturing |
| Asphalt Processing and Asphalt Roofing Manufacturing | Medical Waste Incinerators |
| Autobody Refinishing Paint Shops | Mercury Cell Chlor-Alkali Plants |
| Carbon Black Production | Miscellaneous Organic NESHAP |
| Chemical Manufacturing: Chromium Compounds | Municipal Landfills |
| Chemical Preparations | Municipal Waste Combustors (MWC) |
| Chromic Acid Anodizing | Nonferrous Foundries |
| Clay Products Manufacturing (Clay Ceramics Manufacturing) | Oil and Natural Gas Production |
| Commercial Sterilization Facilities | Paint Strippers |
| Copper Foundries | Paints and Allied Products Manufacturing |
| Cyclic Crude and Intermediate Production | Pharmaceutical Production |
| Decorative Chromium Electroplating | Plastic Materials and Resins Manufacturing |
| Dry Cleaning Facilities | Plastic Parts and Products (Surface Coating) |
| Electrical and Electronic Equipment – Finish Operations | Plating and Polishing |
| Fabricated Metal Products | Polyvinyl Chloride and Copolymers Production |
| Fabricated Plate Work | Portland Cement |
| Fabricated Structural Metal Manufacturing | Prepared Feeds Materials |
| Ferroalloys Production: Ferromanganese & Silicomanganese | Pressed and Blown Glass and Glassware Manufacturing |
| Flexible Polyurethane Foam Fabrication Operations | Primary Copper (not subject to MACT) |
| Flexible Polyurethane Foam Production | Primary Metal Products Manufacturing |
| Gas Distribution Stage 1 | Primary Nonferrous Metals (Zn, Cd and Be) |
| Halogenated Solvent Cleaners | Public Owned Treatment Works |
| Hard Chromium Electroplating | Secondary Copper Smelting |
| Hazardous Waste Incineration | Secondary Lead Smelting |
| Heating Equipment, Except Electric | Secondary Nonferrous Metals |
| Hospital Sterilizers | Sewage Sludge Incineration |
| Industrial Boilers Fired by Coal, Wood and Oil | Stainless and Nonstainless Steel Manufacturing Electric Arc Furnace |
| Industrial Inorganic Chemical Manufacturing | Stationary Internal Combustion Engines |
| Industrial Machinery and Equipment – Finish Operations | Steel Foundries |
| Industrial Organic Chemical Manufacturing | Synthetic Rubber Manufacturing |
| Inorganic Pigments Manufacturing | Valves and Pipe Fittings |
| Institutional/Commercial Boilers Fired by Coal, Wood and Oil | Wood Preserving |