| Emissions Estimation
For sources where no measurements are available, emissions can be based on processes using any of the hundreds of
emissions estimation calculators for all processes contained in the US AP-42 and the Emissions Inventory Improvement Program
(EIIP). These include processes in the Petroleum Industry, Wood & Paper Industry, Metallurgical Industry, Chemical
Processing and others.
Also included are estimation tools for mobile sources and nonroad mobile sources (construction equipment, etc.) All of the
estimation tools are integrated with the primary GIS interface to facilitate easy updating of the central emissions inventory and
subsequent comprehensive reporting.
The GIS-based system allows for quick review and identification of emission sources within a visual, spatial context.
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