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VOC emission rates and emission factors for a sheetfed offset printing shop.

Authors
  • Wadden, R A
  • Scheff, P A
  • Franke, J E
  • Conroy, L M
  • Javor, M
  • Keil, C B
  • Milz, S A
Type
Published Article
Journal
American Industrial Hygiene Association journal
Publication Date
Apr 01, 1995
Volume
56
Issue
4
Pages
368–376
Identifiers
PMID: 7726102
Source
Medline
License
Unknown

Abstract

Emission rates were determined during production for a sheetfed offset printing shop by combining the measured concentrations and ventilation rates with mass balance models that characterized the printing space. Air samples were collected simultaneously on charcoal tubes for 12 separate 1-hour periods at 6 locations. Air samples and cleaning solvents were analyzed by gas chromatography for total volatile organic compounds (VOC) and 13 hydrocarbons. The average VOC emission rate was 470 g/hr with a range of 160-1100 g/hr. These values were in good agreement with the amounts of VOC, hexane, toluene, and aromatic C9s determined from estimated solvent usage and measured solvent compositions. Comparison of the emission rates with source activities indicated an emission factor of 30-51 g VOC/press cleaning. Based on the test observations it was estimated that this typical small printing facility was likely to release 1-2 T VOC/year. The methodology also may be useful for the surface coating industry, as emission rates in this study were determined without recourse to a temporary total enclosure and without interfering with worker activities, increasing worker exposure, or increasing safety and explosion hazards.

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