Emission Inventories Air Emissions Reporting On-Line (AERO) Electronic system for permitted facilities to report air emissions. General Information An overview of estimation procedures for emission inventories and air permits. Forms, pollutant lists & other tools Access current emission inventory forms, instructions and other information about reporting emissions. Emission Estimation Spreadsheets Use these spreadsheets, developed by the NC DAQ Permits Section, to aid in the calculation of emissions. Emission Inventories Emission inventory data in Excel format for calendar years 2010 to current. Emission Inventory Contacts List of the Regional Emission Inventory Contacts and and how to reach them. Introduction to EPA's Compilation of Air Pollutant Emission Factors Find pertinent background and information related to estimation of emissions and appropriate use of the information. Factors for specific industries may be found by following the outline. Specific Industry Guidance Review guidance, citations, and/or assumptions for the following industries: Asphalt, Hot Mix Air Emissions of Ammonia From Animal Operations-Joint NC DAQ and EPA report Cotton Gins EPA AP-42 Section 4.4 - Polyester Resin Plastic Products Fabrication Rendering Wood, Generation and Combustion of "Waste" Other industries to be added later as resources and information (i.e. specific NC guidance) allow. Frequently Asked Questions Frequently asked questions about emission inventories. Glycol Ethers Browse a searchable database of glycol ether compounds regulated by the Clean Air Act. Greenhouse Gas Emissions Calculations Instructions for calculating greenhouse gas emissions. Point Source Emissions for permitted criteria and hazardous/toxic pollutants. NC Emissions Summary Tool includes criteria pollutant, hazardous/toxic pollutant and greenhouse gas emissions for 1993 to 2018. Clean Air Interstate Rule (CAIR) Allowances / (EPA - CAIR) Find information about annual and ozone season CAIR allowance allocations, allocations to new sources from the new unit set-aside (NUSA) and state reallocations of any remaining balances in the NUSA. NOx Budget Information / (EPA - NOx Budget Trading Program) Find information about NOx budget allocations, preliminary allocations for new sources and documents pertaining to NOx budget program. EPA's National-scale Air Toxics Assessment (NATA) for North Carolina EPA's National-Scale Air Toxics Assessment (NATA) is a screening assessment that estimates inhalation health risk for cancer and non-cancer health effects for North Carolina.