Emission inventory data collected in the Metropolitan Toronto area (1969-1970) are managed by a computerized information system which abstracts specified information about individual sources for a diffusion model and also summarizes data in usable formats needed for the day-to-day operations of the air management branch, province of Ontario. Provisions are included for maintaining the data in a current state and modifying either specific sources or classes of sources for simulation purposes. The computer system utilizes Cobal programming routines but has the capacity to format data for the FORTRAN IV language used by the diffusion model. Emission inventory information includes seasonal, daily, and hourly emission rates for area and point sources plus exit gas velocity from stacks and control equipment efficiency. Three summary extracts are regularly prepared: emission quantity summary by size of contribution; emission quantity summary by source type; and sources by type of control equipment installed. The diffusion model predicts air quality on an hourly basis. Major sources include motor vehicles, domestic heating, industrial sources, shipping, railroads, and aircraft.

  • Supplemental Notes:
    • This paper, #71-10, was presented at the Air Pollution Control Association's 64th Annual Meeting in Atlantic City, New Jersey.
  • Corporate Authors:

    Air Pollution Control Association

    4400 Fifth Avenue
    Pittsburgh, PA  United States  15213
  • Authors:
    • Shanks, S G
    • Cole, W A
    • Boyer, A
    • Copper, D G
  • Publication Date: 1972-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00041786
  • Record Type: Publication
  • Source Agency: Air Pollution Technical Information Center
  • Files: TRIS
  • Created Date: May 4 1973 12:00AM