Emissions & calculations

Cited emissions numbers.

Calculate emissions and build inventories. Every factor and control has a citation.

What you can do

  • Calculate potential to emit against the major source threshold
  • Run cited hourly and annual emission calculations
  • Look up EPA emission factors with quality ratings, from AP-42 and live EPA WebFIRE
  • Work storage tank losses (AP-42 §7.1, the TANKS method) and wastewater emissions (§4.3, WATER9)
  • Extract HAP and VOC composition from Safety Data Sheets (SDS)
  • Net a project for PSD or NSR
  • Draft an annual emissions inventory and QA it before submittal
  • Check HAP major source thresholds and GHGRP applicability

The workbook of record

Every computed number lands in a workbook you can open, with the factor, the input, and the formula each carrying its own citation. Numbers the assistant could not tie to a source are flagged rather than left to look verified — including figures you supplied yourself.

Try it

Example prompt

What EPA emission factor applies to NOₓ from a natural gas boiler?