Evaluation of an innovative use of removable thin film coating technology for the abatement of hazardous contaminants.
This study evaluates a new decontamination technique for the mitigation and abatement of hazardous particulates. The traditional decontamination methods used to clean facilities and equipment are time-consuming, prolonging workers' exposure time, may generate airborne hazards, and can be expensive. The use of removable thin film coating as a decontamination technique for surface contamination proved to be a more efficient method of decontamination. This method was tested at three different sites on different hazardous metals. One application of the coating reduced the levels of these metals 90% and had an average reduction of one magnitude. The paired t-tests that were performed for each metal demonstrated that there was a statistically significant reduction of the metal after the use of the coating: lead (p = 0.03), beryllium (p = 0.05), aluminum (p = 0.006), iron (p = 0.0001), and copper (p = 0.004). The Kendall tau-b correlation coefficient demonstrates that there was a positive correlation between the initial levels of contamination and the removal efficiency for all the samples taken from different locations on the floor for each of the three sites. This new decontamination technique worked efficiently, requiring only one application, which decreased exposure time and did not generate any airborne dust.
Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08541, USA. melumia@aol.com
Margaret E
ME
Lumia
Charles
C
Gentile
Michael
M
Gochfeld
Philip
P
Efthimion
Mark
M
Robson
D001608:Beryllium / Q000032:analysis; D003666:Decontamination / Q000379:methods*; D004784:Environmental Monitoring; D004866:Equipment Contamination / Q000517:prevention & control*; D015386:Hazardous Substances / Q000032:analysis*; D007854:Lead / Q000032:analysis; D008670:Metals / Q000032:analysis; D016273:Occupational Exposure / Q000517:prevention & control*; D010087:Oxides / Q000032:analysis; D013499:Surface Properties
D015386:Hazardous Substances; D008670:Metals; D010087:Oxides; D007854:Lead; C047365:lead oxide; D001608:Beryllium