Project at a Glance
Project Status: complete
Title: Improvement of speciation profiles for architectural and industrial maintenance coating operations.
Principal Investigator / Author(s): Censullo, Albert C
Contractor: California Polytechnic State University
Contract Number: 93-319
Research Program Area: Emissions Monitoring & Control
Topic Areas: Stationary Sources
In this study, the nature of emissions from architectural and industrial maintenance coatings was examined. Coating materials for investigation were arranged into 11 categories, based on similarity of emissions, carrier technology, and sales-weighted VOC values. Detailed species profiles were obtained for 106 samples of water-based and solvent-based coating samples.
Emission profiles were obtained by a number of direct and chamber methods. A distillation method was developed for removing the solvents from the coating samples for analysis. Species profiles were developed using a combination of GC-FID and GC-MS.
These individual profiles were arranged into composite group profiles. The resulting profiles contained as many as several hundred identified components. The overall identification rate of VOC species was high. For water based samples, 100% of the VOC mass was identified in all but four samples. In these cases, a few percent of unknown species were detected. For the solvent-based coatings, the identification rate was over 90%, even in the worst case. For those components not positively identified, a carbon number was assigned, based on the retention index of the peak.
For questions regarding research reports, contact: Heather Choi at (916) 322-3893
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