Particulate Emission Factors for Blasting Operations and Other Potential Sources
NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NORFOLK VA ATLANTIC MARINE CENTER
Pagination or Media Count:
This project examined the potential sources of particulate matter in various size ranges that are potentially generated from common shipyard processes and operations. An investigation was conducted to determine which shipyard sources would most likely generate particulate matter in both the course 10 microns in diameter and fine 2.5 microns in diameter size range. Based upon this investigation, a matrix was developed indicating whether a process was a known, possible, or unlikely primarily directly emitted into the air or secondary formed from chemical reactions and condensation source of particulates. The results of this matrix indicated that dry abrasive blasting was the most likely source of the majority of particulate emissions from shipyards. A literature study was conducted to determine previously derived emission factors for abrasive blasting. Additionally, a survey of federal and state environmental agencies was conducted in order to determine if the agency had adopted emission factors for abrasive blasting for use ill estimating particulate emissions. Finally, a survey of abrasive media manufacture andor distributors was conducted to determine if relevant product tests had been performed. The results of these studies and surveys revealed that there was only a small amount of data from work performed previous to this project from which emissions could be derived. The available data was shown to be limited, with information available on only testing of a few types of abrasive, under limited number of production variables.
- Physical Chemistry
- Solvents, Cleaners and Abrasives